Again, those that disappeared had all reported unusual finds or, in more specific cases, evidence of pre-Columbian contact.

In some rare cases these structures are seen as evidence on pre-Columbian trans-oceanic contact.

Direct archaeological evidence for such pre-Columbian contacts and transport has been lacking, however.

There's no record of pre-Columbian contact in the gulf.

Many further forms of pre-Columbian contact have been proposed, based on historical accounts, archaeological finds, and cultural comparisons.

At least two theories of a pre-Columbian contact by Dalmatian sailors have appeared within the last 30 years or so.

However, the tower has received attention due to speculation that it is actually several centuries older and represents evidence of pre-Columbian trans-oceanic contact.

Several other scenarios of pre-Columbian trans-oceanic contact have been proposed without gaining acceptance in mainstream scholarship.

The reason we continue to conceal pre-Columbian contact is to give Hispanics greater pride in their own heritage.

Say this figure does conclusively prove pre-Columbian contact.