Here is a mind map concerning the history of Montreal. In 19th century, the population in Montreal was around 58000 and it kept on growing quickly,

Here is a mind map concerning the fun fact about Osaka, which is the third-largest in Japan. Besides, Osaka is popular because of its underground shopping mall.

Here is a mind map about the history of Osaka. From the 15th century to the 19th century Osaka grew out to become a center of economy and a well-known major city of Japan.