View Pit Stop page for race #1977 by caotienthong1990 — Ghost race
View profile for cao (caotienthong1990)
| Official speed | 57.75 wpm (55.06 seconds elapsed during race) |
|---|---|
| Race Start | May 11, 2010 3:28:09pm UTC |
| Race Finish | May 11, 2010 3:29:04pm UTC |
| Outcome | No win (3 of 4) |
| Points | 0.00 |
| Text | #473 (Length: 265 characters) The invention of the wheel represented a major turning point in human civilization. The first wheels, disks carved from solid wood, may have been built as early as 3500 BC. The earliest use of this device was the potter's wheel, used to spin and shape clay pottery. |