It was the first contested American presidential election, the first presidential election in which political parties played a dominant role, and the only presidential election in which a president and vice president were elected from opposing tickets.
Statement of U.S. foreign policy toward China. Issued by U.S. secretary of state John Hay (1899), the statement reaffirmed the principle that all countries should have equal access to any Chinese port open to trade.
He claimed land most of Canada (he found some parts of Canada) and he also found some on Iceland. He would use them for land (like houses)
I believe that "Porfiriato" was the term that represented the period of time in which Porfirio Diaz held his presidency in Mexico.
Over population is caused many people moving there for business and not enough leaving and or space or job shortage it leads to crowding and shortages