Catalogued
Itamat (Yakama time ball)
- Made by
- Yakama and Plateau peoples
- Year
- 1800s
- Field
- Physical objects
- Kind
- Physical object
- Room
- Lives and events — Placed by reading its description, not yet studied
8 other forms share this skeleton
Source
Friendly and Denis, Milestones in the history of data visualization
Attribution less certain: contested, or no single inventor recorded