By its centennial in 1901, Athens had experienced a century of development and growth. A new city hall was completed in 1904. An African-American middle class and professional class grew around the corner of Washington and Hull Streets, known as the "Hot Corner", where the Morton Building was constructed in 1910. The theater at the Morton Building hosted movies and performances by black musicians such as Louis Armstrong, Cab Calloway, and Duke Ellington. In 1907 aviation pioneer Ben T. Epps became Georgia's first pilot on a hill outside town that would become the Athens-Ben Epps Airport.