There were more than 9 crusaded that lasted over 200 years. The first crusade, known as the Reconquista began in 718 CE, and the final crusaded didn’t end until the 15c.
The Crusades were a series of religious wars between Christians and Muslims started primarily to secure control of holy sites considered sacred by both groups. In all, eight major Crusade expeditions occurred between 1096 and 1291. The bloody, violent and often ruthless conflicts propelled the status of European Christians, making them major players in the fight for land in the Middle East.
French Revolution is about overthrowing the French regime because of tyranny. The American Revolution was about gaining independence from Great Britain.