The chart below shows a comparison between the number of times this symptom was experienced by pregnant vs non-pregnant women. **NOTE: Data for 15-21 dpo tends to be lower than expected as many women stop tracking symptoms after a positive pregnancy test.
If I hadn't done it, someone would've done something equally exciting if not better in the next six months. It was in 1962 when a young computer programmer from MIT, Steve Russell (fueled with inspiration from the writings of E. E. Doc Smith*), created the first computer video game.
Technically the first home game system was the Odyssey made by Ralph Baer, distributed through Magnavox, and it didn't seem to have named games. It probably did, and I just don't know them. That's 7 years before I was born. :) I think it was 1972 when the Odyssey came out.