In the eighteenth century, matthew reopened trade doors with japan.
a. perry
c. columbus
b. cortez
d. cartier

The answer is Perry or letter a.  He landed in Tokyo Bay with a large fleet of warships in 1853 and demand supplies for his ships.  He gave the Japanese time to consider and would later return.  Knowing they could not stand up to such modern weaponry the Japanese signed the Treaty of Kanagawa on March 31, 1854 this ended their period of seclusion.

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the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.