June 23, 1957: East Tennessee State College freshman sprinter Ollan Cassell was selected by the National Amateur Athletic Union to run in a series of meets in Europe after winning the AAU 220-yard championship in a record 21 seconds. Cassell went on to win a gold medal in the men's 4 × 400 m relay at the 1964 Summer Olympics. He later served as AAU’s executive director.
June 23, 1970: The Mountain Empire Chapter of the Sweet Adelines met for the first time.
June 23, 1978: REO Speedwagon performed at Freedom Hall Civic Center.
Sources: Johnson City Court Records, 1913; Johnson City Press-Chronicle; History of Washington County Tennessee; Bobbie H. Shirley, Freedom Hall.