International Tuba Day is celebrated worldwide every first Friday of May to dispel negative stereotypes about the tuba and its players, highlighting the instrument's significant role in the brass family. The holiday was founded in 1979 by Joel Day, a high school student in Pennsylvania, who aimed to recognize tuba players as serious musicians. Celebrations include learning about the tuba's history, attending concerts or marching band competitions, and appreciating tuba music. The tuba, developed in 1835, is known for its versatility and expressiveness, often used in orchestras, brass bands, and jazz ensembles. Influential composers, such as Gustav Mahler and Richard Wagner, have written notable parts for the tuba, further establishing its importance in music. Since its inception, International Tuba Day has been observed in various countries, including Australia, Canada, and Germany.