That is true. By making travel on rivers more efficient.
For example look at Vietnam. Thousands of Americans lost their lives due fighting down there. When LBJ was president civilian people and soldiers wanted the US out of the war at any cost. Due to him not pulling them out people started to think that the government wasn’t on their side in this matter or didn’t listen.
If my memory serves me well, sharecropping most often harm African American sharecroppers.
Amendment XXVI right to vote at age 18 the right of citizens of the united states who are 18 years of age or older to vote shall not be denied or abridged
