The document outlines the construction timeline of schools in Harvard Community Unit School District 50 from 1888 to 2010. It shows that the original Washington School was constructed in 1888. From 1949 to 1954, rural schools were consolidated into the new Jefferson School and New Washington School constructed in 1954. Additional buildings were added in 1962, 1994, and 2010. The latest school, Richard D. Crosby Elementary School, was constructed in 2010.