When was the last time the us flag was change?

Where can the first documentation about slavery in human history be found? What proposed protecting slavery by restoring the Missouri compromise? When was flag day voted to be permanet holiday? What are Thurgood marshall character traits and why? What did Furniture look like in colonial times? Separatists established the colony of? Who was thaddeus Stevens wife? What factors attracted settlers to the great plains? Who were the redeemers in American history? How do historians use turning points to better organize information about the past? Where did the colonial people come from? How much is a 1967 JFK dollar worth? What did silversmiths wear during the colonial times? What did the shelter of the Shawnee tribe look like? How can you find where a dollar bill was made? What is a group of people settled in a distant land and ruled by the government of their native land? What following is the best description of the Indian Removal Act? Are us silver coins worth more with a D mint mark or an S mint mark? Why weren't runaway slaves completely safe when they reached the free states in the North? Why is sutters fort important?