History

Time	Change
2020-11-26 06:12:47+00:00	Created
2020-11-26 06:12:47+00:00	Associated with JIS Z 8201
2020-11-26 06:12:47+00:00	Associated with 数学記号
2020-11-26 06:13:50+00:00	Associated with ISO 31/XI
2022-08-27 03:54:47+00:00	Disassociated from JIS Z 8201
2022-08-27 03:54:47+00:00	Disassociated from ISO 31/XI