What year was the Canadian confederation signed?

What did the signers of the Declaration of Independence mutually pledge? What makes a woman a spinster? What is the source of a government's power or authority called? How do most European countries get lumber? Where can someone get a credit report from the government? Why did southerners in congress insist on the passage of a fugitive slave act? Why is the seniority system unfair? What was the Southwest Indians discovered by Coronado? How many future Presidents signed the Declaration of Independence? Why are there so many turtle knick-knacks sold in the US Supreme Court gift shop? How many Americans have siblings? What was the plan of the United States government that was used before the Constitution went into effect? Why did haiti have to pay the french government? The British attempt to cut New England off from the rest of the colonies failed when Burgoyne surrendered his army at Saratoga? Are news stories secondary data? Which branch of government can reject the appointment of judges? Is of the American revolution an adjective phrase? How much did a horse cost in 1776? What is criteria of social development in human development? Who first referred to Americans as Sons of Liberty?

What year was the Canadian confederation signed?