History Timeline of Bangkok
A visual guide from the Bangkok travel guide — see all posters in Visual Guides.
Bangkok is younger than it looks. In 1782 the capital moved across the river from Thonburi, and a canal was cut to turn the new royal quarter into an island. Everything since has layered onto that grid: trading treaties, the first paved road, new bridges, a 1960s boom that built out Sukhumvit, a financial crash that left a half-finished tower standing over the river. The result is a city where a 1930s bascule bridge and a 314-metre glass tower share the same stretch of skyline.
From canal town to capital
Rama I founded the city in 1782 and had Khlong Rop Krung dug to enclose the Rattanakosin quarter. The Bowring Treaty of 1855 opened Siam to foreign trade, and Charoen Krung, the first road laid for wheeled traffic, followed in the 1860s. In the late nineteenth century the country modernised quickly: railways from the 1890s, Hua Lamphong station in 1916, tramlines threading the old town. The 1930s brought new bridges and roads: the Memorial Bridge opened in 1932 as the first road bridge across the river to Thonburi, and the art deco blocks of Ratchadamnoen Avenue followed soon after.
The modern city
Fast growth and a wave of foreign visitors in the 1960s and 70s built out Sukhumvit and Patpong, with new hotels, malls and the nightlife the city is still known for. The 1997 financial crisis stopped construction mid-pour, and the unfinished Sathorn Unique tower remains its most visible scar. The Skytrain opened in 1999 and the metro in 2004, remaking how the city moves, with Suvarnabhumi following in 2006. More recently ICONSIAM reshaped the riverfront in 2018, and in 2023 Krung Thep Aphiwat Central Terminal took over long-distance trains from Hua Lamphong.