Dayuan District, formerly known as Dayuan Township is a coastal district in northwestern Taoyuan City, Taiwan. Dayuan District was originally named Toa-khu-hng, literally means a vast vegetable garden as an old Chinese name). In the earlier days, cottage scattered around the district with very limited settlers that grows vegetable and sweet potatoes. H…Dayuan District, formerly known as Dayuan Township is a coastal district in northwestern Taoyuan City, Taiwan. Dayuan District was originally named Toa-khu-hng, literally means a vast vegetable garden as an old Chinese name). In the earlier days, cottage scattered around the district with very limited settlers that grows vegetable and sweet potatoes. Hoklo people migrated to the area during the rule of Kangxi. In avoidance of the invasion of Yue people, walled villages were built around the settlements of Hoklo people. It was renamed Ōsono Village during Japanese rule, and was part of Tōen District, Shinchiku Prefecture. After the handover of Taiwan from Japan to the Republic of China, it was called Dayuan Township. It became Dayuan District in 2014, when Taoyuan County became a special municipality.