History

Time	Change
2012-04-01 13:20:38+00:00	Created
2012-04-01 13:20:38+00:00	Associated with 媒体要素事象タスク源
2012-04-01 13:20:38+00:00	Associated with 媒体要素イベント・タスク源
2012-04-01 13:20:38+00:00	Associated with media element event task source
2014-03-14 10:40:30+00:00	Associated with 媒体要素イベントタスク源