1878 Burpee Seed Company Timelines: Timeline of American Garden History
The W. Atlee Burpee & Co. of Philadelphia is founded and later becomes the largest mail-order seed company in the world.
Ellis, Barbara W., Jane S. Keough, Judy Powell, and American Horticultural Society. North American Horticulture, a Reference Guide. (New York: Scribner, c. 1982).