Since WBZ went on the air in September 1921, listeners have heard the biggest names in politics. First was Governor Channing Cox, at the Eastern States Exposition; other politicians quickly followed, campaigning by radio became popular. WBZ broadcast the inauguration of President Calvin Coolidge in 1925. In early January 1929, WBZ was the first to broadcast the inauguration of governor Frank G. Allen. We were the first to provide area governors with regular time to broadcast; in 1931, Governor Joseph Ely became the first to have a microphone installed in his office, so he could speak to listeners over WBZ, and the tradition continues to this day.