| 100% | PRINTINGPRESS | 13 | Device invented by Johannes Gutenberg in the fifteenth century |
| 41% | VOLLEYBALL | 10 | Ball game invented by William G Morgan whose original name in the late 19th century was Mintonette |
| 38% | WINDMILL | 8 | Device invented in the Middle Ages |
| 38% | SOLARCELL | 9 | Invented by the Bell Labs in 1954 |
| 38% | GUNPOWDER | 9 | Invented by the Chinese, used in munitions |
| 36% | ARC | 3 | Type of lamp using carbon electrodes invented by Humphry Davy in the early 19th century |
| 35% | WIPER | 5 | Windshield ___, rainy day car device invented by Mary Anderson that was patented in 1903 |
| 35% | DUMBWAITER | 10 | A labor-saving device invented by 44-Down was the … |
| 34% | CAPITAL | 7 | "___ in the Twenty-First Century," 2013 book by the French economist Thomas Piketty |
| 34% | PIETISM | 7 | Lutheranism movement in the 17th and 18th centuries founded by Philipp Jakob Spener |
| 33% | ASL | 3 | Communication syst. invented in the nineteenth century |
| 32% | IHS | 3 | Christogram popularized in the 15th century by Saint Bernardino of Siena |
| 32% | DIANAROSS | 9 | Singer named "Female Entertainer of the Century" by Billboard in 1976 |
| 32% | CRUSADES | 8 | Religious attacks by Europeans in the 12th century |
| 32% | TELEPHONE | 9 | Device invented by Alexander Graham Bell |
| 32% | HIP | 3 | The Tragically ___, Canadian rock band formed in Ontario with the hit "Ahead by a Century" |
| 31% | TRIPOLI | 7 | Capital of Libya which was founded in 7th century BC by the Phoenicians |
| 31% | ATM | 3 | Device first deployed in the U.S. by Chemical Bank (1969) |
| 31% | EDISON | 6 | The 1st phonograph was invented by him in 1877 |
| 31% | PELE | 4 | Soccer legend named Athlete of the Century by the International Olympic Committee in 1999 |
| 30% | AREA | 4 | In the ___ (close by) |
| 30% | PROJECTOR | 9 | Motion picture-beaming device invented by Edison |
| 30% | SEEDDRILL | 9 | Agricultural sowing device invented by Jethro Tull |
| 30% | DETECTOR | 8 | Metal-finding device invented by Gerhard Fisher |
| 30% | ENL | 3 | In the mil. by choice |
| 30% | MIDST | 5 | In the ___ of (surrounded by) |
| 30% | ISLANDS | 7 | "___ in the Sky," 1952 sci-fi novel by Arthur C. Clarke that is set in the later half of the 21st century |
| 30% | BAHAI | 5 | Monotheistic religious system founded in the 19th century by Baha'u'llah |
| 30% | DONUT | 5 | Word from an abbreviation used in the early 20th century by the company that made machines that created these common pastries |
| 30% | CHOKE | 5 | Device in a car engine enriching the fuel-air mixture by restricting the amount of air entering the carburettor |