gallery: South American Indian languages

Important Dates in American History from YouTube · Duration: 4 minutes 48 seconds

Important Dates in American History from YouTube · Duration:  4 minutes 48 seconds

Smithsonian National Quilt Collection: Machine Quilting from YouTube · Duration: 2 minutes 5 seconds

Smithsonian National Quilt Collection: Machine Quilting from YouTube · Duration:  2 minutes 5 seconds

American History Important Dates from YouTube · Duration: 2 minutes 59 seconds

American History Important Dates from YouTube · Duration:  2 minutes 59 seconds

AO / Optical Heritage Museum in 1997 from YouTube · Duration: 3 minutes 50 seconds

AO / Optical Heritage Museum in 1997 from YouTube · Duration:  3 minutes 50 seconds

History of the American Prom - A Guide for You from YouTube · Duration: 3 minutes 27 seconds

History of the American Prom - A Guide for You from YouTube · Duration:  3 minutes 27 seconds

Dating Rituals Throughout History from YouTube · Duration: 1 minutes 59 seconds

Dating Rituals Throughout History from YouTube · Duration:  1 minutes 59 seconds

History of Mother's Day | History from YouTube · Duration: 2 minutes 52 seconds

History of Mother's Day | History from YouTube · Duration:  2 minutes 52 seconds

The History of South America: Every Year from YouTube · Duration: 3 minutes 57 seconds

The History of South America: Every Year from YouTube · Duration:  3 minutes 57 seconds

US History in 10 Minutes from YouTube · Duration: 10 minutes 1 seconds

US History in 10 Minutes from YouTube · Duration:  10 minutes 1 seconds

I Am Angus: The History of Barbed Wire from YouTube · Duration: 3 minutes 6 seconds

I Am Angus: The History of Barbed Wire from YouTube · Duration:  3 minutes 6 seconds

Bet You Didn't Know: Halloween | History from YouTube · Duration: 2 minutes 16 seconds

Bet You Didn't Know: Halloween | History from YouTube · Duration:  2 minutes 16 seconds

History Of Captain America! from YouTube · Duration: 9 minutes 6 seconds

History Of Captain America! from YouTube · Duration:  9 minutes 6 seconds