hmmm
RADIO
The first radio transmission across an ocean (the Atlantic Ocean) occurred on December 12, 1901 thanks to Nikola Tesla.
FLIGHT
On December 17, 1903, the "Flyer" flew for 12 seconds and for a distance of 120 feet (37 m). The flight took place at Kitty Hawk, North Carolina, USA. (Wright Bros)
POLAROID CAMERA
Edwin Herbert Land (1909-1991) was an American physicist and inventor who developed the first modern light polarizers (which eliminate glare) and other optical devices, investigated the mechanisms of color perception, and developed the instant photography process (the Polaroid camera). Land established the Polaroid Corp. in 1937.
DISPOSABLE DIAPER
The disposable diaper was invented in 1950 by Marion Donovan. Her first leak-proof diaper was a plastic-lined cloth diaper. Donovan then developed a disposable diaper. She was unsuccessful at selling her invention to established manufacturers, so she started her own company
here's a list of interesting stuff.
http://www.enchantedlearning.com/inventors/1900a.shtml
i'd say edison for lightbulb, but he didnt invent it.. only improved it 79 yrs after it's invention.. but he did make the phonograph(record player) which is damn cool.