Tanhai is a country in East Alshar, bordering Daxia to the south, Canpei to the west, Metzetta to the north and the Ocean of Cathay to the east.

Republic of Tanhai

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Flag
Capital
and largest city
Huigye
Official languagestbd
Demonym(s)tbd
Governmenttbd
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tbd
Legislature-
Establishment
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Population
• 2025 estimate
76,654,982
Time zoneUTC??
Driving sideleft
Internet TLD.th

Etymology

History

Antiquity

The Old Kingdom of Jin which spanned territory that is part of today's Daxia and Tanhai was founded by members of the Bao clan in approximately the year 220 BC. The noble Bao clan had escaped into southern Tanhai around the year of 300 BC after losing a power struggle in the state of Sui. Slowly rebuilding their political fortunes, they intermarried with the nomad clans of the Degei and gained their military support.

Nomad Migration and Imperial Province

Circa early 600's BC nomad tribes migrating(expelled by other tribes, fleeing famine/natural disaster/plagues/seeking new grasslands/etc) from the north Tanhai settle in northwestern Tanhai, create the Degei confederation(I originally imagined them as closely resembling the manchu people 'Degei' is just what they are called in Daxia). Circa 670's they start doing what nomads do and go raid and wreck other peoples shit, aka they ride south into the corummese shang dynasty. After a few years they get their shit pushed in and Shang moves into Tanhai and turns part of it into an imperial province(extensive corummese settlement at this point in south and central tanhai) and the Degei are relegated to the northern border zone as vassals and military auxiliaries.

Revolt and Despotate of Tang

Downfall of Shang dynasty in 840-850's weaknes direct control of the province, ambitious viceroy declares himself Despot of Great Tang and buys loyalty of local garrisons. Tang invades eastern peninsula to take it from a ethnic metzettan statelet, probably loses badly and wastes precious military resources in the process. Smelling weakness, nomads stir again. Despotate limps on several centuries more

Kingdom of Tanhai

Tang name gets corrupted into Tanhai? or something lol. Northern nomads over time become landed nobles/marcher lords/sipahis providing safety at the border/cavalry for Tanhai's armies in exchange for land and other benefits

Geography

Climate

Politics

Government

Administrative Divisions

Law

Foreign Relations

Military

Demographics

A note on the Metzettan diaspora.

Education

Language

Religion

Health

Economy

a quick word on the currency

Agriculture

Industry

Tourism

Science & Technology

Infrastructure

Transportation

Tanhai uses the same Five Foot Six Inch Gauge track as Daxia, allowing their railway networks to be interconnected across the border.

road, air and sea

Energy

Communications

Tanhai's top-level domain is .th.

phones and postal service

Culture

Art& Architecture

Cuisine

Literature & Philosophy

Music, Theatre & Dance

Media

Holidays & Folklore

Fashion

Sports

Symbols