4.1.1 The data set of history area
Since the past, Nakhon Nayok province is important as a vital outpost because of Nakhon Nayok is the plain between Chao Phraya River and Bang Prakong River that can communicate with other provinces east and northeast. Resulted in Ayuttathaya period, Nakhon Nayok province is important as a strategic path. During World War II Nakhon Nayok province is important and related to history in this period as a route march and the bases of Japanese army. Moreover, while Japanese surrendered, the war was officially declared. Nakhon Nayok province is also the places for controlling Japanese military. At that time the Japanese military in area of Nakhon Nayok province have more than 70,000 officers as well as a place to disarm and accept weapons from Japanese military with the allied forces. In the past, there have been found many historical evidences related to Japanese army that still extant in various areas of Thailand such as Kanchanaburi province, still see the various constructions as pier or railroad and trace of construction-related, such as Hellfire Pass and bridge of the River. At the same time, the study of history related to World War II of Nakhon Nayok province not rarely appear in history during that period.
For the area of Khao Thurian in Khao Phra sub-district, Muang district, Nakhon Nayok province is another one area which is important because it is a part of the Japanese military base during World War II