What country was Texas originally part of ??

Mexico

Explanation:

And i know this is true

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.