The year 1851 was the 70th year of the Rattanakosin Kingdom of Siam (now known as Thailand). It was the 28th and last year in the reign of King Nangklao (Rama III), and the first year in the reign of King Mongkut (Rama IV).
The year 1851 was the 70th year of the Rattanakosin Kingdom of Siam (now known as Thailand). It was the 28th and last year in the reign of King Nangklao (Rama III), and the first year in the reign of King Mongkut (Rama IV). (en)
The year 1851 was the 70th year of the Rattanakosin Kingdom of Siam (now known as Thailand). It was the 28th and last year in the reign of King Nangklao (Rama III), and the first year in the reign of King Mongkut (Rama IV). (en)