Bang Rak, Thailand

By the time of King Mongkut's reign (Rama IV, 1851–1868), the city had outgrown its original defensive walls, and the King ordered the digging of Khlong Phadung Krung Kasem to serve as a new outer moat surrounding the city proper. The canal separated Bang Rak, on the far side from the city, from the Chinatown area, and as the country began modernizing and opened to the West under Mongkut's reign, European visitors began establishing themselves here. The Bowring Treaty was signed with the British in 1855, liberalizing trade and granting diplomatic concessions, and other Western countries followed suit. Consulates, trading companies and expatriate communities were established in the waterfront area, which became the city's European quarter.

The Westerners also indirectly set off the city's transformation. They petitioned Mongkut to build roads for their use, first to the Phra Khanong area (to where they planned to relocate but later abandoned the idea), then to serve the waterfront community in Bang Rak. The King obliged, and had Thanon Trong (also known as Hua Lamphong Road and later to become Rama IV Road) constructed in 1857 and Charoen Krung Road in 1862. Si Lom Road soon followed, linking the two. The introduction of land-based transport transformed the city, and Charoen Krung became its main thoroughfare, bringing commerce and spurring development.

In the 1890s and 1900s, during the reign of King Chulalongkorn (Rama V, 1868–1910), enterprising businessmen engaged in land development by buying up land and building roads through the area. The resulting Sathon, Surawong, and Si Phraya roads ran roughly parallel to Si Lom, and, together with a few connecting roads between them, have since formed the district's main road network.

The development attracted businesses, which established numerous shops along the roads, as well as newly wealthy residents, who made their homes in villas. Emerging ethnic communities were formed by migrants arriving from Western colonies, who found advantage in the treaties' extraterritorial provisions. Among them were Javanese Muslims, and Hindus, Muslims, and Jains from India, who established places of worship in their neighbourhoods, joining the Christian churches as the missionaries continued to expand their work through the founding of schools and hospitals. The roads were soon augmented by rail transport, as the Paknam Railway (the country's first line) opened along Thanon Trong in 1893, and electrified trams began running on Charoen Krung Road the following year. Another tram line, along Si Lom Road, opened in 1925.

Bang Rak District gradually proceeded to fill up with development, and in the post-World War II period, increasing numbers of foreign businesses moved from the waterfront area into newer premises, especially along Si Lom Road. In 1963, the trams were discontinued, and the canal that ran alongside Si Lom road was filled in for its expansion, further incentivizing its development as a business street. (Many of the roads had originally been built with canals running alongside, using the excavated earth. The Paknam Railway was also discontinued, in 1960.) The Dusit Thani Hotel, the city's first high-rise building, opened in 1970, initiating a wave of high-rise construction along Si Lom and Sathon as the economy boomed through the early 1990s. While the 1997 financial crisis put an end to the boom, the economy eventually recovered.

The earliest government proclamation naming Bang Rak as a district dates to 1908, and it was re-established with boundaries near its present form in 1915. Its status, along with Bangkok's other districts', was later changed from amphoe to khet in 1972. The district is named Bang Rak after the original waterfront settlement. While bang is a common place name prefix for villages situated on a rivers, the origins of the second word are unclear. Early documents variably spelled the name as บางรัก or บางรักษ์; the first (and current) spelling fits with the theory that it derived from that of the rak (Gluta usitata) tree, a large trunk of which had been found in the area, while the second favours the idea that the name came from the word rak (รักษ์ 'heal'), after hospitals operated by the area's missionaries. Today, as rak is also a homonym alternatively meaning "love", the name makes the district office a popular place for marriage registrations, especially on Valentine's Day.