Who dominated Mexican political life in the 19th century?

Porfirio Díaz

Explanation:

After another revolt–this time successful–against Júarez's successor Sebastián Lerdo de Tejada, Porfirio Díaz takes control of Mexico. Except for one four-year stretch from 1880 to 1884, Díaz will rule essentially as a dictator until 1911.

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

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the problem not the