When did the land bridge theory begin? and what did it argue

It began in 1997 with the discovery of an archaeological site in Monte Verde, Chile, dating back to 14,500 years ago - a full millennium older than what was previously thought to be the first people in the new world, and indicating they settled much further south than expected.

because it had logic

Explanation:

- "bill clinton ( the 42nd u.s. president, served in office from by low unemployment, declining crime rates and a budget surplus. during clinton's second term, the u.s. economy was healthy, unemployment was low and the nation experienced a major technology boom and the rise of the internet."