Why do people start revolutions? Use examples from both the French and Haitian Revolutions

Which term best describe the first spaniards in oklahoma? a) explorers b) treasure hunters c) pioneers d) settlers i need this andwer

Debris tossed into the atmosphere by a meteorite impact can cause greenhouse warming true false

Can someone answer these question about vasco de gama for me: when? (when did he started his travel)from where & to where? (from where he was and then where he went to)motives? (what was his motives for traveling)accomplishments & discoveries? i will give you 15 star for answering all of these, you so much.