Similarities between Sam Houston and Mirabeau Lamar are:
Both Sam Houston and Mirabeau Lamar were strong leaders, with visions for the new Republic to shape the future of Texas. They both spent time with bands of Indians in their middle ages and underwent through little schooling
Must be the age of 25 years, 7 years a citizen of the U.S. and who shall not, when elected, be an inhabitant of that State in which he shall be chosen.
1.3 million served, 50,000 died
Road and canals were built to help them
I beleive the correct answer is government regulation