In what decade did the California gold rush begin?

What was the first the major problems in Jamestown? What are some types of colonial houses? Did john smith really marry Pocahontas and did he have any kids? When Grant paroled 30 thousand prisoners at Vicksburg did the Confederates have to release 30 thousand Union prisoners? Was roobert e Lee funny? Why was Merlin important to the tales of King Arthur? Who defeated America for the first time? What two states did William penn found? Is this sentence unusual Jackdaws love your big sphinx of quartz? What were Mesopotamia's government and individual roles in society? What was the name of the plantation harriet Tubman was born on? What caused Hilter to hate the Jews so much? Which countries were knownas the central powers? What is the main duty of a delegate to a political convention? What events inspired the Sacco and Vanzetti trial? What is An episode of war by Stephen crane about? What were the pitching stats for baseball player Mike Smith playing for the Minnesota Twins in 2006? Were there any Pirates of the American revolution? Where can one read the official military commissions act? A shortage of what would have devastating consequences for the South during the Civil War is?

In what decade did the California gold rush begin?