Question: why is eaa in oshkosh?
Answer: In 1959, the EAA fly-in grew too large for the Air Pageant and moved to Rockford, Illinois. In 1970, when it outgrew its facilities at the Rockford airport, it moved to Oshkosh, Wisconsin. ... On May 1, 2020, the EAA announced that the 2020 AirVenture convention and air show would be canceled due to the COVID-19 pandemic.