diff --git a/__pycache__/app.cpython-313.pyc b/__pycache__/app.cpython-313.pyc
index 1f5382a..05c01a1 100644
Binary files a/__pycache__/app.cpython-313.pyc and b/__pycache__/app.cpython-313.pyc differ
diff --git a/app.py b/app.py
index 5605e90..dc16d02 100644
--- a/app.py
+++ b/app.py
@@ -2817,4 +2817,54 @@ def get_fallback_mindmap_data(node_id):
         "edges": edges
     }
 
-# Diese Routen wurden an den Anfang der Datei verschoben und werden nicht mehr benötigt
\ No newline at end of file
+# Diese Routen wurden an den Anfang der Datei verschoben und werden nicht mehr benötigt
+
+@app.route('/api/mindmap/science')
+def get_science_mindmap():
+    """
+    Gibt die Wissenschafts-Mindmap zurück für Frontend-Kompatibilität.
+    """
+    app.logger.info("Wissenschafts-Mindmap-Daten werden angefordert.")
+    
+    try:
+        nodes = [
+            {
+                "id": "physics",
+                "name": "Physik",
+                "description": "Lehre von der Materie und ihren Wechselwirkungen",
+                "category": "Wissenschaft",
+                "has_children": True,
+                "color_code": "#f4b400"
+            },
+            {
+                "id": "biology",
+                "name": "Biologie",
+                "description": "Lehre von den Lebewesen und ihren Lebensprozessen",
+                "category": "Wissenschaft",
+                "has_children": True,
+                "color_code": "#f4b400"
+            },
+            {
+                "id": "chemistry",
+                "name": "Chemie",
+                "description": "Wissenschaft von den Stoffen und ihren Reaktionen",
+                "category": "Wissenschaft",
+                "has_children": True,
+                "color_code": "#f4b400"
+            }
+        ]
+        
+        edges = [
+            {"source_id": "science", "target_id": "physics", "strength": 0.8},
+            {"source_id": "science", "target_id": "biology", "strength": 0.8},
+            {"source_id": "science", "target_id": "chemistry", "strength": 0.8}
+        ]
+        
+        return jsonify({
+            "nodes": nodes,
+            "edges": edges
+        })
+        
+    except Exception as e:
+        app.logger.error(f"Fehler beim Abrufen der Wissenschafts-Mindmap-Daten: {str(e)}")
+        return jsonify({"error": "Fehler beim Abrufen der Mindmap-Daten"}), 500
\ No newline at end of file
diff --git a/logs/app.log b/logs/app.log
index b7ee9b9..f09d30e 100644
--- a/logs/app.log
+++ b/logs/app.log
@@ -1462,3 +1462,195 @@ werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on
 2025-05-11 00:22:24,158 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
 2025-05-11 00:22:26,170 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
 2025-05-11 00:22:26,170 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:23:28,446 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:23:30,235 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:23:30,235 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:04,692 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/root, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:04,692 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/root, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:05,404 INFO: Anwendung gestartet [in c:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:07,202 INFO: Anwendung gestartet [in c:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:07,202 INFO: Anwendung gestartet [in c:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:07,640 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:09,535 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:09,535 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:11,258 INFO: Anwendung gestartet [in c:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:12,041 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/root, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:12,041 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/root, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:12,282 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/root, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:12,282 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/root, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:13,080 INFO: Anwendung gestartet [in c:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:13,080 INFO: Anwendung gestartet [in c:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-11 00:24:14,077 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/science, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:14,077 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/science, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:14,752 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/science, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
+2025-05-11 00:24:14,752 ERROR: Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /api/mindmap/science, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1823, in full_dispatch_request
+    rv = self.dispatch_request()
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1788, in dispatch_request
+    self.raise_routing_exception(req)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\app.py", line 1770, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\flask\ctx.py", line 351, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+  File "C:\Users\TTOMCZA.EMEA\AppData\Roaming\Python\Python313\site-packages\werkzeug\routing\map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+ [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:92]
diff --git a/static/js/update_mindmap.js b/static/js/update_mindmap.js
index 4145129..ab3f6f2 100644
--- a/static/js/update_mindmap.js
+++ b/static/js/update_mindmap.js
@@ -803,7 +803,20 @@ function createFlashContainer() {
 // Funktion zum Laden der Mindmap-Daten aus der Datenbank
 async function loadMindmapData(nodeId = null) {
     try {
-        const response = await fetch(`/api/mindmap/${nodeId || 'root'}`);
+        let url;
+        // Wir müssen zwischen numerischen IDs und String-IDs unterscheiden
+        if (nodeId === null || nodeId === undefined) {
+            // Wenn keine ID angegeben ist, verwende 'root'
+            url = '/api/mindmap/root';
+        } else if (isNaN(parseInt(nodeId))) {
+            // Für String-IDs wie 'root', 'technology', 'arts' - direkte Route
+            url = `/api/mindmap/${nodeId}`;
+        } else {
+            // Für numerische IDs - neue Route mit /id/ Präfix
+            url = `/api/mindmap/id/${nodeId}`;
+        }
+        
+        const response = await fetch(url);
         if (!response.ok) throw new Error('Fehler beim Laden der Mindmap-Daten');
         return await response.json();
     } catch (error) {