Among the nation’s oldest athletic clubs, the Boston Athletic Association was established on March 15, 1887, 136 years ago today!🎉 The club held its first organized track and field competition in 1890, and chose a mythical unicorn as its symbol, which remains on @BostonMarathon & B.A.A. race medals to this day!🦄 Happy #FoundersDay , unicorns! #BAA #BostonMarathon #oneBOSTON