When did the first horse arrive on the North American continent?

Hi Pgl58!

"The very first horses evolved on the North American continent over 55
million years ago. Over millions of years they roamed the grasslands
slowly extending their range to most of the continents on earth. Then
horses migrated across the Bering land bridge from North America into
what is now Siberia. From there, they spread across Asia into Europe
and south to the Middle East and Northern Africa."
http://www.letemrun.com/Wild-Horse-Information-Origins-of-The-Horse.htm

Does this answer your question?

Thanks,
Bobbie7-ga
Google Answers Researcher

Here's another bit of information.

"It wasn't until 1500 A.D. that the horse was reintroduced to North
America when the Spanish came to conquer the New World in the 16th
Century."
http://www.letemrun.com/Wild-Horse-Information-Origins-of-The-Horse-2.htm

--Bobbie7