Final answer:
The National FFA Convention took place in Kansas City, Missouri from 1928 to 1999, focusing on agricultural education and youth development.
Step-by-step explanation:
The National FFA Convention was held in the city of Kansas City, Missouri from 1928 to 1999. The Future Farmers of America, now known as the National FFA Organization, is a youth organization that promotes and supports agriculture education working in a three-circle model of agricultural education as a student leadership organization and supervised agricultural experience program. The convention was an annual event that gathered students from all over the country to participate in agricultural competitions, leadership workshops, and career development events.