Assertion: simple accordion | /r/CreatedBy | timofey vorontsov
Facets:
value: in 1830
type: TEMPORAL
value: in 1820
type: TEMPORAL
value: in tule
type: LOCATION
Source sentences:
text: Russian researchers claim the earliest simple accordion was first made by Timofey Vorontsov in Tule in 1820 and Ivan Sizov in 1830.