Some children's book illustrators might not have gotten a lot of sleep over the weekend. That's because they might have been wondering if this could be the year they win one of the grand prizes of children's literature: the Randolph Caldecott Medal.
This year is the 75th anniversary of the Caldecott, which is given to the most distinguished children's picture book of the year. The winner is being named Monday morning at a meeting of the American Library Association.
In California in the early 1980s, a cracked tooth sent Mike Williams to the dentist's office.
When Williams asked to see the tooth, the dentist said he had a mirror but that there was no camera or anything to show people the insides of their mouths. So, Williams invented one: the first intraoral camera.
His invention was a big success, and it led to other medical technology ventures that made him millions of dollars. Williams' career as an inventor and entrepreneur took off, but it wouldn't last.