The name of Sankhaburi or Sawankhaburi has the same meaning as the name of the nearby province,
Nakhon Sawan, is "Heavenly City". It was originally known as
Phraek Si Racha (the term "Phraek" is a
Mon language meaning "water intersection"). The history of Sankhaburi began at about 2,500 years ago. At that time, Sankhaburi depends on
Suphannaphum Kingdom (present-day
Suphanburi) in this area to Nakhon Sawan as an important trade junction. ==Geography==