This accession consists of Twitter posts, known as tweets, using the hashtag #Smithson250 between November 16 and December 5, 2015. This hashtag was promoted by the
Smithsonian Institution (SI) for 250th anniversary of the birth year of James Smithson, founder of (SI). The tweets were exported as a spreadsheet and include both tweets
by the museum and tweets by other organizations and individuals. Materials are in electronic format.