Where was the first AFL grand final?

Melbourne Cricket Ground - 06/10/1990. 1990 was the 1st year as the 'AFL'. Previously the competition was known as the VFL (Victorian Football League. The name changed due to the expansion outside Victoria). The first 'VFL' Grand final was held at the Junction Oval on Sat 24-Sep-1898. There was no 'grand final' in the first VFL season (1897).