The roman empire created the world's first
irrigation system
network of roads.
system of writing
firefighting brigades.

firefighting brigades

Explanation:

Just took the test

affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts

how is this a question? but yes, they were. if i recall correctly, it was very handy for native americans to use buffalo skin.