<Li> Foundation of the Ottoman Empire </Li> <Li> <Ul> <Li> Glorious Revolution </Li> <Li> French Revolution </Li> </Ul> </Li> <Ul> <Li> Glorious Revolution </Li> <Li> French Revolution </Li> </Ul> <Li> <Ul> <Li> Trienio Liberal </Li> <Li> First French Empire </Li> </Ul> </Li>

Why did several governments change from monarchies to constitutional governments