Timeline September 1821

Events in September 1821 3

• 1821 Faraday discovers electromagnetic rotation First demonstration of continuous electric motion from electromagnetism Michael Faraday built a device in which a current-carrying wire rotated continuously around a magnet, the first demonstration of converting electrical energy into mechanical motion. The discovery laid groundwork for the later invention of the electric motor.
• 1821 Act of Independence of Central America Guatemala, El Salvador, Honduras, Nicaragua and Costa Rica break from Spain Colonial authorities in Guatemala City signed a declaration severing ties with Spain, initially joining the First Mexican Empire before forming their own federation. The date is still celebrated as independence day across Central America.
• 1821 Mexican War of Independence ends Army of the Three Guarantees enters Mexico City Following the Plan of Iguala and the Treaty of Córdoba, Agustín de Iturbide's army entered the capital, ending eleven years of war and securing Mexican independence from Spain. Iturbide was crowned emperor the following year.