August 31, 1920 –
John Lloyd Wright, son of famed architect Frank Lloyd Wright, was issued a patent for “Toy-Cabin Construction,” which are known as Lincoln Logs. (U.S. patent 1,351,086)
Wright sold his rights to Playskool for $800, to supplement his meager salary, at the time. It is estimated that over 100 million sets of Lincoln Logs have been sold worldwide.
The Haus of Dcaligari 