Before his presidency and after T.R. immersed himself with issues concerning land conservation and animal welfare fighting for them with unmatched passion compared to the other presidents.
Writing or researching about a topic on which they feel strongly may be a difficult position for many historians. This is because as a historian, you're meant to provide unbiased information and opinion on any given topic. Granted, in some cases it may be completely acceptable to write with bias. I hope this answer is satisfactory.
The Mexican government contracted empressarios or land agents after the Mexican Independence in 1821. These empressarios were needed to help with the settlement of Texas.
Answer: A(n) <u><em>empressario</em></u> was a land agent granted the right to recruit and assist new settlers in colonizing land held by Mexico.