Apollonia Pontica was an ancient Greek city located on the Black Sea coast, in present-day Bulgaria. Founded in the 6th century BCE by settlers from Miletus, it became an important center for trade and culture. The city was known for its thriving economy, particularly in fishing and maritime trade, and it played a significant role in the spread of Greek culture in the region. The city was also famous for its impressive architecture, including temples dedicated to Apollo, the god after whom it was named. Over the centuries, Apollonia Pontica faced various invasions and changes in rule, but it remained a vital hub until its decline in the late Roman period.