1. Jack Johnson was the world's first African American heavyweight champion. What is his second claim to fame?

2. What do the initials "YKK," which can be found on many zippers, stand for?

3. Following the previous question, who invented the zipper?

4. Mrs. Josephine Cochrane, wife of an Illinois politician, patented the first of these to address the problem of her kitchen staff constantly breaking her good china. What was the invention called?

5. Coppertone suntan lotion was developed by a doctor to help this population of people. Name the group who initially benefitted.

Answers

1. Jack Johnson patented a wrench on April 18, 1922. He wanted "to provide an improved wrench, which in assembly presents a substantially unitary structure, and which may be easily dissembled for purposes of replacement or repair."

2. Yoshida Kogyo Kabushibibaisha, the world's largest zipper manufacturer

3. Mechanical engineer Whitcomb Judson.

4. The automatic dishwasher or "Cochrane Dish-Washer."

5. Dr. Benjamin Green developed the lotion to help the U.S. military devise ways to keep soldiers from getting sunburned in the Pacific theater of World War II.

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