What significant event took place in 1926 related to FFA?

The correct answer is the First National FFA Convention, which occurred in 1926. This event marked a pivotal moment in the establishment of the Future Farmers of America (FFA) as it provided a platform for members to gather, share their experiences, and discuss agricultural education's future. The convention emphasized the organization's focus on leadership development and the importance of agricultural education in schools across the United States.

This gathering laid the groundwork for what would become a long-standing tradition of annual conventions, fostering unity among members and promoting agricultural practices. The impact of this event continues in the form of the annual FFA conventions held today, which attract thousands of members, mentors, and agricultural advocates.

The other options relate to significant developments in agricultural education but do not capture the specific historic occasion that the 1926 event represents in the context of the FFA's founding and evolution.