71.
When was the first Lionel trains manufactured?

72.
What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869?

73.
Who invented Bakelite?

74.
What toy was invented by Joshua Lionel Cowen around 1900?

75.
This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece.

76.
What invention by Garnet Carter made its debut at the Fairyland Inn Resort in Lookout Mountain, Tennessee, in 1927?

77.
Who invented the phonograph?

78.
What beverage was invented by Charles Alderton in 1885 in Waco, Texas?

79.
In which decade was the ARRL founded?