History

Time	Change
2017-01-28 13:56:35+00:00	Created
2017-01-28 13:56:35+00:00	Associated with クラーク楕円体
2017-01-28 13:57:20+00:00	Associated with 改訂クラーク, 1880
2017-01-28 13:57:20+00:00	Associated with Clarke ellipsoid