Bicycle
A human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame. Innovations like the chain drive and pneumatic tires made it a popular mode of transport.
Core metadata
- ID: bicycle
- Era: Industrial
- First known date: 1817 (exact)
- Region: Mannheim, Baden/Germany
- Review status: source_checked
- Maturity: N/A
Prerequisites
Dependents
- Automobile (Prototype) (automobile_prototype)
- Powered, Controlled Flight (powered_flight_wright_flyer)
Fields
- None.
Node sources
- 2 WHEELS - 200 Years: Freiherr von Drais and the History of the Bicycle (TECHNOSEUM / Google Arts & Culture, 2017, museum) • Supports: node
Locator: TECHNOSEUM dates Drais's first cycling tour to June 12, 1817 in Mannheim, anchoring the bicycle/running-machine lineage.
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 1
- Average edge confidence: 68%
- Prerequisite sources: 1
- expert_inference: 1
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Steel Production (steel_production) | enabling | 68% | expert_inference | Steel Production provides a capability that enables this technology without being the only possible path. |
|
This page is generated from canonical era JSON and is indexable by URL.