Osaka

Osaka is a major designated city in Japan. It is located in the Kansai region on Honshu island.

The city serves as the capital of Osaka Prefecture. It is the third-most populous city in Japan. This follows the special wards of Tokyo and Yokohama.

Osaka is the largest part of the Keihanshin Metropolitan Area. This area is the second-largest metropolitan area in Japan. It is also the 10th-largest urban area in the world. The total population for this metropolitan area exceeds 19 million people. The city itself has an estimated 2,816,247 residents as of October 2025. Its population density is about 12,505 people per square kilometer.

The geography of Osaka changed significantly over thousands of years. During the Jomon period, around 7,000 BCE, much of the area was underwater. A peninsula formed that was 12 km long and 2.5 km wide. This land separated Kawachi Bay from the Seto Inland Sea.

People settled here due to favorable geological conditions. The area was rich in fresh water and lush vegetation. The position was also easy to defend against military attacks. Over time, sediments deposited north of the Uemachi plateau changed the land. These sediments transformed Kawachi Bay into a lagoon. Eventually, the area became a lake connected to the Yodo River.

Early settlements provided many clues about ancient life. Archeologists found a kaizuka, which is a mound containing remains, in the Chuo-ku district. These mounds contained shells, oysters, and human skeletons.

They also found stone tools, fishing hooks, and rice processing debris. These items date back 2,000 years to the Jomon and Yayoi periods. During the Yayoi period, rice farming became popular on the plains. This led to more permanent habitation. In the third century CE, the Sumiyoshi Taisha Grand Shrine was inaugurated. This shrine introduced a unique building style called Sumiyoshi-zukuri.

Osaka has a deep history as a political and trade center. During the Kofun period, it became a major hub port. The port of Naniwa-tsu connected the region to western Japan. Large keyhole-shaped Kofun mounds were built in the plains. These mounds show that political power was concentrating in the area. The city served as the imperial capital of Japan twice. It was the capital in 645 CE under Emperor Kōtoku. It was declared the capital again in 744 CE by Emperor Shōmu. Even when the capital moved, the city remained a vital transport link.

The Edo period shaped Osaka into an economic powerhouse. The city became a center for Japanese culture and merchants. Many residents belonged to the merchant class rather than the samurai class. Merchants organized storehouses to hold rice from feudal lords. They traded this rice for coins or receipts. This system acted as a precursor to paper money. In 1697, the Rice Exchange was established at Dōjima. This became the world's first futures market for unharvested rice. The city also developed a vibrant arts culture with Kabuki and Bunraku theaters.

Industrialization changed the city's role during the Meiji era. Following the Meiji Restoration in 1868, Osaka underwent rapid industrial growth. It became a major industrial center for Japan. Some people called it the "Manchester and Melbourne of the Orient." By 1925, it was the largest and most populous city in Japan. It was also the sixth-largest city in the world. This growth attracted many immigrants from India, China, and Korea. Today, Osaka is a major financial center. It is home to the Osaka Exchange and large corporations like Panasonic and Sharp.

Modern Osaka is a cosmopolitan hub of research and culture. It hosts several major universities, including Osaka University and Kansai University.

The city is known for being multicultural. Visitors can see many famous landmarks. These include Osaka Castle and the Osaka Aquarium Kaiyukan.

For modern sights, people visit the Dōtonbori district.

The city also features the tall Abeno Harukas building.

Osaka remains a vital connection between history and modern global industry.