View Pit Stop page for race #2 by stack — Ghost race
View profile for Colleen (stack)
| Official speed | 54.66 wpm (58.18 seconds elapsed during race) |
|---|---|
| Race Start | January 19, 2011 12:51:56pm UTC |
| Race Finish | January 19, 2011 12:52:54pm 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. |