In 1866, Charles Martin Crandall began making toys at his furniture factory in Montrose Pennsylvania. Crandall’s first toy was a set of toy building blocks that utilized a new system of interlocking tongues and grooves. He would use this interlocking system in a number of other wood toys. In 1889, at his new factory in Waverly New York, Crandall invented what would become his most popular toy – “Pigs in Clover.” The ball in a maze puzzle game swept the nation and even brought a session of Congress to a standstill. Ultimately, Pigs in Clover sold over a million units, a record number for its time.