messages.content: When did the Treaty of Tordesillas take place? Put it in the format of YYYY.
messages.role: user
messages.role: assistant
messages.arguments: {"event_name": "Treaty of Tordesillas", "format": "YYYY"}
messages.name: european_history_get_event_date
messages.type: function
tools: [{"type": "function", "function": {"name": "european_history_get_event_date", "description": "Retrieve the date of a specific event in European history.", "parameters": {"type": "dict", "properties": {"event_name": {"type": "string", "description": "The name of the event."}, "format": {"type": "string", "description": "Optional format of the returned date. Default is 'MM-DD-YYYY'."}}, "required": ["event_name"]}}}]