The first people to bring horses back to the Americas were the Europeans, specifically the Spanish, during the 15th and 16th centuries.
Here's a breakdown:
* Extinction: Horses evolved in North America but went extinct during the last ice age.
* Reintroduction: European explorers brought horses with them to the Americas during the Age of Exploration.
* Impact: The introduction of horses had a profound impact on the indigenous cultures of the Americas, changing their way of life, warfare, and trade.
So, while the idea of "reintroducing" horses might be a bit misleading, it's accurate to say that the Spanish were the first to bring horses back to the Americas after their extinction.