Final answer:
The claim about Agricultural Mechanics being the first agricultural proficiency award area established in 1944 is false. The southeastern United States was an independent center for plant domestication, and land acquisition was a key factor in early U.S. Indian policy.
Step-by-step explanation:
The statement that in 1944 Agricultural Mechanics was the first agricultural proficiency award area established is false. The National FFA Organization, initially known as the Future Farmers of America, indeed has a history of recognizing proficiency in various agricultural areas, but Agricultural Mechanics was not the first.
Examining the provided reference statements, one can affirm that the southeastern United States was likely one of the world's independent centers for plant domestication. Additionally, it is false that the proposed Lecompton Constitution in the Kansas territory showed the dominance of the Free Soilers; it was actually pro-slavery. Furthermore, land acquisition was indeed a primary motivating factor in the formulation of early U.S. Indian policy.