Assertion: fusee clock | /r/CreatedBy | zech
Facets:
value: in 1525
type: TEMPORAL
Source sentences:
text: Many sources erroneously credit clockmaker Jacob Zech of Prague with inventing it around 1525, The earliest definitely dated fusee clock was made by Zech in 1525, but the fusee actually appeared earlier, with the first spring driven clocks in the 15th century.