Someone brought up the Lincoln Log sandwich which made me think about the Lincoln Log Toy Set. I had them as a child and gave to my son as a toy and now will give to my grandchildren. Lincoln Logs were invented in 1916 by John L. Wright, son of architect Frank Lloyd Wright. John was influenced by design of the basement of the Imperial Hotel in Tokyo which was designed by his father. The basement of the hotel used a unique foundation of interlocking beams to make the structure "earthquake proof". It has always been assumed that the name of the toy relates to Abraham Lincoln because he was born in a log cabin. However, it could also be related to Frank Lloyd Wright's name because his given middle name was Lincoln. Lincoln Logs originally came with instructions on how to build Uncle Tom's Cabin as well as Abraham Lincoln's log cabin. The sets were originally made of 100% wood. with varying colors of roof pieces. But by 1970s almost all the wood had been replaced by plastic. However, today they have reverted to real wood. They have always been popular since their creation. In 1953 they were one of the first toys advertised on TV.