[Ans] Of the original 13 british american colonies, which was the last to become an official state?

 List of 13 British American Colonies:

• Roanoke Colony 1585

 • Virginia Colony 1607

 • New England 1620

 • King Charles II charter for Rhode Island and Providence Plantations 1663

 • Rupert's Land 1670

 • Treaty of Utrecht 1713

 • 13th colony formed 1732

 • Independence declared 1776

 • Treaty of Paris 1783 

Rhode Island was one of the first colonies to embrace autonomy from the British and espouse Revolutionary ideals, it was the last of the 13 colonies to ratify the Federal Constitution and became a State in 1790.