History

Time	Change
2020-01-02 11:31:11+00:00	Created
2020-01-02 11:31:11+00:00	Associated with 2020年問題
2020-01-02 11:32:37+00:00	Associated with 2020年問題 (ガラケー)
2020-01-16 02:00:53+00:00	Associated with Y2K20
2021-01-01 10:21:08+00:00	Associated with 西暦2020年問題