Gyeongin Province

Gyeongin Province (Zhenian: 경인도), is a Zhenian province along the western coast of the Danguk Peninsula in the northern shore of the Golden Arch. It surrounds Daedo Special City in three directions, while it also borders the Gwanseo and Gwandong provinces to the south, Gyeongcheon Province to its east and Songhwa Province to its north. It is the second-most populous and the 9th-smallest province in the nation, being home to almost 41 million residents as of 1610. Its economy, with a nominal GDP of over $1.36 trillion, is the single largest sub-national economy in the nation, a figure that does not take into account the existence of the Greater Capital Area.

Etymology and nomenclature
Prior to its current name, what is now Gyeongin Province was referred to as Hanseong Province, combining one syllable from Hansan and Seongnam respectively. The region roughly corresponding to modern-day Gyeongin Province was referred to as Hanseong Province under the Eastern Zhen and continued on under Daehwa.

The current name 'Gyeongin' comes from the combination of syllables of two of the largest cities in the region - 'gyeong' coming from the one-syllable Zhenian term for 'capital city', and 'in' coming from modern-day Inju. The term was established as the name of the province after Zhenian unification under the Empire of Zhenia in 1438, when modern-day Daedo was designated its capital. Combining the 'gyeong' to symbolize the proximal capital city and the first syllable of the largest city in the province at the time - that is, modern-day Inju - the name of the province was thus established.

Geography
Gyeongin Province is situated on the eastern shore of the Golden Arch and is home to over 1,400 km (880 mi) of coastline. The province's coastline is characterized by the existence of few islands off its coasts, with the most notable ones being Songdo Island and Seongsu Island off the coast of Seongnam and Chungju respectively. At the southwestern edge of the province is the Hogak Peninsula, which sticks out southwest into the Golden Arch. The province is geographically separated from the eastern half of the peninsula by the Bukdu Mountains, which run through the backbone of the peninsula all the way to northern Namhae Province. The highest point in the province is Mount Cheonak, with an elevation of 1,618 meters (5,308 ft) above sea level; its lowest point is Lake Cheonggyeong, at 23 meters (75 ft) below sea level.

Gyeongin Province borders Gwanseo Province to the south, provinces Gwandong and Gyeongcheon to the east and Songhwa Province to its north, while it surrounds Daedo on three directions in its west.

Demographics
Gyeongin Province is the second most populous province-level administrative subdivision in Zhenia after Balhae Province, being home to just over 40 million residents as of 1610.

A significant portion of Gyeongin Province's population is concentrated along the Danbon River basin and around Daedo, the latter which form a significant portion of the Greater Capital Area megalopolis.

Economy
In 1610, Gyeongin Province's nominal gross regional product was around $1.36 trillion, being responsible for around 8.7 percent of the Zhenian economy, making it higher than any other province-level subdivision in the nation; its nominal per capita figure at the same year was $33,687.23. The primary, secondary and tertiary sectors in the province each accounted for 3.1%, 39.1% and 57.6% of the regional economy respectively. Its registered unemployment rate was around 3.6%, or among the lowest in the entire nation.

Transportation
With the province itself surrounding Daedo on three sides overland, the road and rail infrastructure of Gyeongin Province cannot be explained without its interaction with Daedo and broadly the Greater Capital Area in general. All key road and rail lines that pass through or head towards Daedo inevitably pass through Gyeongin Province - the most notable example is the Golden Arc Expressway and both segments of the Trans Golden Arc Line, which pass through the province from its southeast to northwest while it penetrates Daedo intermittently. With major roads and rail lines passing through Daedo serving as the primary trunk, the road and rail network within Gyeongin Province stretches out to connect other parts of the province with those served by said primary trunk.