関連ワード:
why are there 13 stars on the american flag why were the 13 stars on the first american flag why 13 stars on the american flag why are there 13 stars on the us olympic flag why are there 50 stars and 13 stripes on the american flag why were there only 13 stars on the first american flag why are there stars on the american flag what does the us flag with 13 stars mean what is the flag with 13 stars why are there 50 stars and 13 stripes on the flag
