Episode 1 of 2

Patent Issuance

When
January 8, 1889
Where
United States
Part of
Herman Hollerith patents his electric tabulating machine

Hollerith was issued U.S. Patent 395,782 on January 8, 1889, for his electric tabulating machine.

The patent described a method of compiling statistics using holes punched in sheets of electrically non-conducting material and counting them with mechanical counters operated by electro-magnets. This invention marked the beginning of mechanized binary code and semiautomatic data processing systems.

Sources

  1. Herman Hollerith Wikipedia, revision of 2026-02-24

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.