King Mongkut, Rama IV, (1851-1868) may have acchieved western fame through the story
"The King and I", but won the hearts of Thais for his accomplishments including the
establishment of treaties with European countries, thus avoiding colonialization, and
modernizing Thailand through many soc6ial and economic reforms. King Chulaalongkorn , Rama
V (1869-1910) continued his father's tradition of reform, abolishing slavery and improving the
public welfare and wdministrative systems.