Why Are Shark Teeth Black

Why sharks teeth turn black? Shark teeth are preserved if the tooth is buried, which prevents decomposition by oxygen and … More

Finland Is Rome

What did the Romans call Finland? FinniaThis list includes the Roman names of countries, or significant regions, known to the … More

Why Is Russia So Big

How did Russia get to be so big? By the early 18th century, Russia had vastly expanded through conquest, annexation, … More