请问这段英语的最后一句的语法是怎样的?

题目

请问这段英语的最后一句的语法是怎样的?
On this date in 1782,George Washington ordered the creation of a Badge of Military Merit in Newburgh,New York.The badge was made in the shape of a purple heart with a silver edge.The award gives recognition to soldiers injured in action.Only three are known to have been given during the Revolutionary War.The award was not officially reestablished until February 22,1932 on what would have been George Washington's 200th birthday.

答案

The award was not officially reestablished until February 22, 1932 on what would have been George Washington's 200th birthday.分析句子成分,首先找主谓宾,找到之后整个句子就非常容易理解主语：the award谓...