Database Narrative & Analysis Visit HistoryofScience.com » « back to the full timeline Electromechanical Punched Card Tabulating (1889) In 1889 American statistician  Herman Hollerith  of Georgetown , Washington, D. C. was a awarded three patents (U.S. Patent 395,781, U.S. Patent 395,782, U.S. Patent 395,783) for an electromechanical machine for tabulating information