The Thirteen colonies first formed in 1507.
As a nation, our first government was established at the end of the revolution via the Articles of Confederation.
Because the questions uses the word "colonies," I'm assuming that you mean the Continental Congress.
The Virginia House of Burgesses was formed in 1619 and was the first form of representative government in the United States. It set the precedent for other local legislatures to be formed throughout the colonies and to an extent it inspired the legislative branch of our government.
The 13 colonies (USA)
The 13 colonies were created as states by the Declaration of Independence and the NW Territories were carved afterward by government.
Napoleon was part of a coup against the Directory in 1799.
Jamestown, VA
America was not a country when the colonies were being formed. So there was not president but when the colonies all became a county George Washington was the first president.
They were all part of the american revolution and were some of the first colonys.
United Front Government
Articles of Confederation