Bithynia

Quick Facts: Who was Bithynia?

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Bithynia

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Ancient geographical region in northwestern Asia Minor, crucial for trade and culture.

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2Day Chrono-Wiki & Primary Historical Archives

Origins & Early Life

Bithynia (; Koine Greek: Βιθυνία, romanized: Bithynía) is a geographical region of northwestern Asia Minor (in present-day Turkey), adjoining the Sea of Marmara, the Bosporus, and the Black Sea. It borders Mysia to the southwest, Paphlagonia to the northeast along the Black Sea coast, and Phrygia to the southeast towards the interior of Asia Minor. Hellenistic Bithynia was an independent kingdom from the 3rd century BC. Its capital Nicomedia was rebuilt on the site of ancient Astacus in 264 BC by Nicomedes I. Bithynia was bequeathed to the Roman Republic in 74 BC, and became united with the Pontus region as the province of Bithynia and Pontus. In the 7th century it was incorporated into the Byzantine Opsikion theme.

Career & Major Achievements

It became a border region to the Seljuk Empire in the 13th century, and was eventually conquered by the Ottoman Turks between 1325 and 1333. Several major cities sat on the fertile shores of the Propontis (which is now known as the Sea of Marmara): Nicomedia, Chalcedon, Cius and Apamea. Bithynia also contained Nicaea, noted for being the birthplace of the Nicene Creed. According to Strabo, Bithynia was bounded on the east by the river Sangarius (modern Sakarya), but the more commonly received division extended it to the Billaeus (Filyos), which separated it from Paphlagonia, thus comprising the district inhabited by the Mariandyni. A less common view holds that the much less important Parthenius River (modern Bartın) marked the eastern border of Bithynia.

Enduring Legacy & Impact

On the west and southwest it was separated from Mysia by the Rhyndacus river and on the south it adjoined Phrygia and Galatia. It was occupied by mountains and forests, but had valleys and coastal districts of great fertility. The most important mountain range was the so-called Mysian or Bithynian Olympus (8,000 ft, 2,400 m), which towers above Prusa (modern Bursa) and is clearly visible as far away as Istanbul (70 miles, 110 km). Its summits are covered with snow for a great part of the year. East of this the range extends for more than 100 miles (160 km), from the Sakarya to Paphlagonia.

Chronological Milestones & Life Events

1. 1325: 1325 Milestone — It became a border region to the Seljuk Empire in the 13th century, and was eventually conquered by the Ottoman Turks between 1325 and 1333.

Historical Fact-Check Quiz: Bithynia

True or False: “Did the Bithynians maintain their independence until they were conquered by the Ottoman Turks?”

Answer (FALSE ❌): The Bithynian kingdom was bequeathed to the Roman Republic in 74 BC, long before the Ottoman conquest.

Contemporary Figures & Related Historical Timelines

• Amir Khusrau — Historical peer (Died in 1325) (1325): Iconic Indo-Persian Sufi poet, musician, and scholar of the Delhi Sultanate.
• Denis of Portugal — Historical peer (Died in 1325) (1325): King of Portugal, known as the Farmer and Poet King, who reformed the nation.
• Hōjō Takatoki — Historical peer (Died in 1333) (1333): The last ruling Shikken of the Kamakura Shogunate, a pivotal figure in late 13th-century Japanese politics.
• Kan'ami — Historical peer (Born in 1333) (1333): Pioneering Noh actor, author, and musician who founded the Kanze school.

Frequently Asked Questions about Bithynia