Hagia Sophia Istanbul
Historical Encyclopedia

ISTANBUL: THE SUBLIME PORTE

Where East Meets West: Capital of the Ottoman Empire

"If the earth were a single state, Istanbul would be its capital." – Napoleon Bonaparte.

Straddling Europe and Asia across the Bosphorus Strait, Istanbul (formerly Constantinople) stands as a testament to the might of the Ottoman Empire—a fusion of Islamic grace and Byzantine grandeur that controlled global trade routes for centuries.

Istanbul is the only city in the world located on two continents. Conquered by Sultan Mehmed II (The Conqueror) in 1453, the city transformed from the heart of Orthodox Christianity into the seat of the Islamic Caliphate, becoming a beacon of science, art, and architecture that influenced the world, including Egypt.

Blue Mosque Interior

A Skyline of Domes and Minarets

The Ottoman skyline is defined by the work of the great architect Mimar Sinan and his successors, who blended Byzantine engineering with Islamic aesthetics.

Hagia Sophia (Ayasofya)

Originally built as a Christian cathedral by Emperor Justinian I in 537 AD, it served as the center of Eastern Orthodox Christianity for nearly 900 years. After the 1453 conquest, Sultan Mehmed II converted it into a mosque, adding minarets and Arabic calligraphy while preserving much of the interior mosaics. Its massive dome remained the largest in the world for a millennium.

The Blue Mosque (Sultan Ahmed Mosque)

Standing directly opposite Hagia Sophia, this masterpiece was commissioned by Sultan Ahmed I to rival its Byzantine neighbor.

Palaces of the Sultans

Topkapi Palace: The Harem & The Holy Relics

For 400 years, this sprawling complex was the administrative heart of the empire. Unlike European palaces, it is a collection of pavilions and courtyards.

Dolmabahçe Palace

In the 19th century, the Sultans moved to this European-style palace on the Bosphorus. It symbolizes the empire's modernization (Tanzimat era). It boasts the largest crystal chandelier in the world, a gift from Queen Victoria.

Hidden Gems

Basilica Cistern (Yerebatan Sarnıcı)

An underground wonder built in the 6th century to filter water for the Great Palace. The forest of 336 marble columns rising from the water creates a hauntingly beautiful atmosphere. Visitors often seek out the two columns supported by inverted Medusa heads.

Galata Tower

Originally built by the Genoese in 1348, this tower offers one of the best panoramic views of the Golden Horn and the historic peninsula. It was from here that Hezarfen Ahmed Çelebi reportedly flew across the Bosphorus using artificial wings in the 17th century.

The Ottoman-Egyptian Connection

The history of Istanbul is inextricably linked with Egypt. In 1517, Sultan Selim I defeated the Mamluks at the Battle of Ridaniya (near Cairo), absorbing Egypt into the Ottoman Empire.

The Caliphate Moves

With the conquest of Egypt, the title of Caliph passed to the Ottoman Sultans. Istanbul became the center of the Islamic world, utilizing the wealth of the Nile to protect the holy cities of Mecca and Medina.

Muhammad Ali Pasha

In the 19th century, Muhammad Ali, an Ottoman commander of Albanian origin sent to Egypt, rose to become the Khedive. He modernized Egypt, modeling Cairo's architecture (Downtown Cairo) after the Europeanized districts of Istanbul.

Master of the Trade Routes

Istanbul controlled the Bosphorus, the vital choke point between the Black Sea and the Mediterranean. It was the terminus of the Silk Road.

Timeline of Istanbul

330 AD: Emperor Constantine consecrates Constantinople as the "New Rome."
1453: Conquest of Constantinople by Sultan Mehmed II; the city becomes the Ottoman capital.
1517: Sultan Selim I conquers Egypt; the Caliphate transfers to Istanbul.
1520–1566: Reign of Suleiman the Magnificent; the Golden Age of Ottoman art and power.
1923: Founding of the Republic of Turkey; the capital moves to Ankara, though Istanbul remains the cultural heart.

Frequently Asked Questions

The "Mısır Çarşısı" (Egyptian Bazaar) was built in 1660. It derived its name because it was constructed using tax revenues collected from the Ottoman province of Egypt (Cairo), and because it was the center for the spice trade coming from India via Egypt.
Yes. The Obelisk of Theodosius in the Sultanahmet Square (formerly the Hippodrome) was originally the Obelisk of Thutmose III, brought from the Temple of Karnak in Luxor by the Roman Emperor Theodosius I in the 4th century AD.
The Bosphorus is a natural strait connecting the Black Sea to the Sea of Marmara (and eventually the Mediterranean). It physically separates Europe from Asia, making Istanbul a city on two continents.

Follow the Trade Routes

Discover the legacy of the Ottomans in Istanbul and their lasting mark on Egypt.