Talk:Thulium(III) oxide

Check dates
It says that it was first isolated in 1878, yet in the thulium article, it says 1879. Can we fix one or the other? (See similar note on the thulium page.)

WesT (talk) 20:00, 12 September 2017 (UTC)
 * See Talk:Thulium. Double sharp (talk) 03:21, 13 September 2017 (UTC)