Do you know what is the hardest part of learning to ride a bike?
Interesting Fact: There are several early but unverified claims for the invention of bicycle-like machines. The earliest comes from a sketch said to be from 1493 and attributed to Gian Giacomo Caprotti, a pupil of Leonardo da Vinci. In 1998 Hans-Erhard Lessing described this as a purposeful fraud. However, the authenticity of the bicycle sketch is still vigorously maintained by followers of Prof. Augusto Marinoni, a lexicographer and philologist, who was entrusted by the Commissione Vinciana of Rome with the transcription of da Vinci’s Codex Atlanticus. ( https://en.wikipedia.org/wiki/History_of_the_bicycle )
Interesting Fact: Throughout the 14th and 15th centuries, most European frames were church-commissioned and largely unmovable as they were altarpieces and a large part of the church’s architecture. The frames were ornamented with architectural elements mimicking the exteriors of the great cathedrals. ( http://en.m.wikipedia.org/wiki/Picture_frame#History )
Interesting Fact: One of the earliest frames was a discovery made in an Egyptian tomb dating back to 2nd century A.D. in which a fayum mummy portrait was discovered at Hawara still within its wooden frame. This finding suggests the mummy portraits may have been hung in the owners’ homes prior to inclusion within the funerary equipment. The portrait and its frame were most likely preserved by the desert climate, according to frame historian and installation expert Marilyn Murdoch explained in a historical talk to museum docents. ( http://en.m.wikipedia.org/wiki/Picture_frame )