Coronation Day/The real name of bangkok
The 6th April is a public holiday in Thailand.
The 6th April is Chakri Memorial Day (วันจักรี Wan Chakkri). This recognizes as the Coronation Day of King Buddha Yodfa Chulaloke พระบาทสมเด็จพระพุทธยอดฟ้าจุฬาโลกมหาราช(Reign: 1782–1809) who established the Chakri Dynasty pronounced in Thai “Ratchawong Chakri” and the Rattanakosin Kingdom (รัตนโกสินทร์) known as Bangkok City today.
The area of Bangkok dates at least to the early 15th century, when it was a village on the west bank of the Chao Phraya River, under the rule of Ayutthaya. Because of its strategic location near the mouth of the river, the town gradually increased in importance. Bangkok initially served as a customs outpost with forts on both sides of the river, and became the site of a siege in 1688 in which the French were expelled from Siam. After the fall of Ayutthaya to the Burmese Empire in 1767, the newly declared King Taksin established his capital at the town, which became the base of the Thonburi Kingdom. In 1782, King Phutthayotfa Chulalok (Rama I) succeeded Taksin, moved the capital to the eastern bank's Rattanakosin Island, thus founding the Rattanakosin Kingdom. The City Pillar was erected on 21 April, which is regarded as the date of foundation of the present city.
The Chakri Dynasty has continued on to the present Thai Monarchy. His Majesty King Bhumibol Adulyadej is the ninth King (Rama IX)
พระบาทสมเด็จพระเจ้าอยู่หัว ภูมิพลอดุลยเดช มหาราช (Reigned since 1946, coronation 5 May 1960)
His Majesty King Bhumibol Adulyadej is the World’s longest-serving current Head of State and the longest-reigning Monarch in Thai history.
So..the real name of Bangkok is the longest city name on Earth.!
Its full name is
"กรุงเทพมหานคร อมรรัตนโกสินทร์ มหินทรายุธยามหาดิลกภพ
นพรัตน์ราชธานีบุรีรมย์ อุดมราชนิเวศน์มหาสถาน อมรพิมานอวตารสถิต
Bangkok's fifty districts. - Thirty-five of these districts lie to the east of the Chao Phraya, while fifteen are on the western bank, known as the Thonburi side of the city.