July is National Ice Cream Month and for those interested in studying the history and the industry, the Library of Congress has resources that can help.
The digitized papers from the American Federation of Labor contain a telegraph sent by president Samuel Gompers to E.L. Doyle in response to Doyle's telegraphs reporting on the Ludlow Massacre.
John Dunlap, a Philadelphia printer at the time of the American Revolution, may be known for printing the Declaration of Independence, but he also printed currency for his new country.