| Field | Domestic Sewing |
| Went Obsolete | Early 20th century |
| Made Obsolete By | Widespread electrical service and cheap electric motors |
| Knowledge Assumed | Maintaining and operating a treadle-driven machine |
| When useful | Sewing “off the grid” or after the Apocalypse |
See http://www.treadleon.net/(approve sites) for complete information and treadle evangelism.