Where it comes from
The line in the source
Kyoto (first) | 2016-03-16 | 2019-02-17
Explore / Figure
Record
17 February 2019 Opened 16 March 2016, closed 17 February 2019
EstimateOur model or estimate. Treat it as an order of magnitude.
Found in one pass only. The research team reads every source twice, independently; this record turned up in one reading but not the other, so treat it as less certain than its grade.
The line in the source
Kyoto (first) | 2016-03-16 | 2019-02-17