The first states were mostly monarchies, as far as we can tell. They were ruled by kings or queens. The earliest monarchies that we know about are the ones in Sumer and Egypt. These both began around 3000 BC.
When did the current British monarchy begin?
The current Royal Family line emerged with the Norman invasion in 1066 when William the Conqueror landed in England. He deposed the monarch at the time, Harald Godwinson, dismantling the House of Wessex.
Who was the first monarchy?
According to legend, the Imperial House of Japan was founded in 660 BCE by Japan's first Emperor, Jimmu, making it the oldest continuous hereditary monarchy in the world.