Countries That No Longer Exist: 25 Former Nations & What Replaced Them

Throughout history, countries have formed, merged, split, been conquered, and dissolved. Some of the most powerful nations in history — the Soviet Union, the Ottoman Empire, the Austro-Hungarian Empire — no longer exist. Others simply changed their names (Persia became Iran, Siam became Thailand, Ceylon became Sri Lanka).

Introduction

Since 1900 alone, dozens of internationally recognized countries have disappeared from the world map. This guide explores 25 of the most notable, explaining why each ceased to exist and what replaced it.

20th Century Dissolutions

• Soviet Union (1922–1991): Split into 15 independent countries including Russia, Ukraine, and Kazakhstan
• Yugoslavia (1918–1992): Broke into 7 countries: Slovenia, Croatia, Bosnia, Serbia, Montenegro, North Macedonia, Kosovo
• Czechoslovakia (1918–1993): Peacefully split into Czech Republic and Slovakia
• East Germany (1949–1990): Reunified with West Germany on October 3, 1990
• West Germany (1949–1990): Absorbed East Germany to form unified Germany
• Tibet (independent until 1950): Annexed by China in 1950–51, now the Tibet Autonomous Region
• South Vietnam (1955–1975): Unified with North Vietnam after the Vietnam War
• North Vietnam (1945–1976): Unified with South Vietnam as the Socialist Republic of Vietnam

The Soviet Union's dissolution on December 25, 1991, was the most consequential geopolitical event of the late 20th century. At its peak, the USSR covered 22.4 million km² — the largest country in history — and was home to 290 million people speaking over 100 languages. Its collapse created 15 independent nations and ended the Cold War.

Yugoslavia's dissolution was far more violent. What began as declarations of independence by Slovenia and Croatia in 1991 escalated into a decade of wars that killed over 140,000 people and included the worst genocide in Europe since the Holocaust — the Srebrenica massacre of 1995, in which over 8,000 Bosniak men and boys were murdered.

Empires That Disappeared

• Ottoman Empire (1299–1922): Replaced by Republic of Turkey (1923) and numerous Middle Eastern/Balkan states
• Austro-Hungarian Empire (1867–1918): Dissolved into Austria, Hungary, Czechoslovakia, Yugoslavia, and parts of Poland, Romania, Italy
• Russian Empire (1721–1917): Replaced by the Soviet Union after the 1917 Revolution
• German Empire (1871–1918): Replaced by the Weimar Republic after World War I
• British Raj (1858–1947): Partitioned into India, Pakistan (and later Bangladesh)
• French Indochina (1887–1954): Dissolved into Vietnam, Laos, and Cambodia

The Ottoman Empire at its height controlled much of Southeast Europe, the Middle East, and North Africa. Its dissolution after World War I created the modern map of the Middle East — borders drawn by Britain and France in the Sykes-Picot Agreement of 1916 that continue to cause conflict today. Turkey, Iraq, Syria, Lebanon, Jordan, Palestine, and Saudi Arabia all emerged from Ottoman territory.

The Austro-Hungarian Empire was Europe's second-largest country by area and third-largest by population when it dissolved in 1918. Its collapse after World War I redrew the entire map of Central Europe. Austria, Hungary, Czechoslovakia, Yugoslavia, and parts of Poland, Romania, and Italy all emerged from its territory.

Countries That Changed Names

• Persia → Iran: 1935 — "Iran" means "Land of the Aryans" in Persian
• Siam → Thailand: 1939 — "Thailand" means "Land of the Free"
• Ceylon → Sri Lanka: 1972 — "Sri Lanka" means "Resplendent Island" in Sanskrit
• Burma → Myanmar: 1989 — military junta changed the name; both are still used
• Rhodesia → Zimbabwe: 1980 — renamed after independence from white-minority rule
• Upper Volta → Burkina Faso: 1984 — "Burkina Faso" means "Land of Honest People"
• Zaire → DR Congo: 1997 — renamed after Mobutu's overthrow
• Swaziland → Eswatini: 2018 — King changed name to traditional Swazi form

Name changes reflect political transformations, independence movements, and cultural identity assertions. Iran's shah changed the country's name from Persia in 1935 to emphasize its Aryan heritage and modernity, though "Persia" (derived from the ancient province of Fars) remains common in casual usage worldwide.

Some name changes remain controversial. Myanmar's military junta changed the country's name from Burma in 1989 without consulting the population. Many opposition groups and some countries (notably the UK and US until recently) continued using "Burma" as a political statement. Both names derive from the same ethnic group — the Bamar people — "Burma" from the colloquial pronunciation and "Myanmar" from the literary form.

African Countries That Disappeared

• Tanganyika + Zanzibar → Tanzania: 1964 — merged to form the United Republic of Tanzania
• Abyssinia → Ethiopia: Ancient name gradually replaced by "Ethiopia" in the 20th century
• Gold Coast → Ghana: 1957 — first sub-Saharan African country to gain independence
• Dahomey → Benin: 1975 — renamed after a Marxist revolution
• Nyasaland → Malawi: 1964 — renamed at independence from British colonial rule
• Bechuanaland → Botswana: 1966 — renamed at independence
• Basutoland → Lesotho: 1966 — renamed at independence
• Northern Rhodesia → Zambia: 1964 — renamed at independence

Almost every African country had a different name under colonial rule. These name changes at independence were powerful acts of national identity — rejecting colonial names imposed by European powers and adopting names rooted in African history, languages, and cultures.

Ghana chose its name from the medieval Ghana Empire, which actually existed hundreds of miles northwest in modern Mauritania and Mali. The choice was symbolic — a connection to Africa's precolonial greatness. Similarly, Zimbabwe took its name from Great Zimbabwe, the medieval stone city whose ruins remain a symbol of precolonial African civilization.

Ancient and Medieval States

• Prussia: Powerful German state that led unification; dissolved by Allied decree in 1947
• Kingdom of Hawaii: Overthrown by American settlers in 1893; annexed by the US in 1898
• Republic of Texas: Independent 1836–1845; voluntarily joined the United States
• Gran Colombia: Simon Bolivar's post-independence state; split into Colombia, Ecuador, Venezuela, Panama
• Papal States: Ruled by the Pope; absorbed into unified Italy 1870; Vatican City remains

Prussia was the most powerful German state and the driving force behind German unification in 1871. After World War II, the Allied Control Council formally abolished Prussia in 1947, blaming its militaristic tradition for contributing to both world wars. Its territory was divided among East Germany, West Germany, Poland, and the Soviet Union.

The Kingdom of Hawaii was an internationally recognized sovereign state until American sugar planters, backed by US Marines, overthrew Queen Liliuokalani in 1893. The US formally annexed Hawaii in 1898 and granted it statehood in 1959. In 1993, Congress passed a formal apology resolution acknowledging the illegality of the overthrow.

Key Facts

• The Soviet Union was the largest country in history (22.4 million km²) before dissolving into 15 nations in 1991.
• Yugoslavia's breakup killed over 140,000 people in the 1990s wars.
• Czechoslovakia's peaceful "Velvet Divorce" in 1993 is a model of nonviolent separation.
• The Ottoman Empire's borders, drawn by Sykes-Picot in 1916, still shape Middle Eastern conflicts.
• Almost every African country changed its name after independence from colonial rule.

Fun Facts

• The Republic of Texas was an independent country for 9 years (1836–1845) with its own president, currency, and foreign embassies.
• Prussia was formally abolished by Allied decree in 1947 — one of the few times a state has been legally dissolved by outside powers.
• "Czechoslovakia" lasted 74 years (1918–1993) — shorter than many of its citizens' lifetimes.
• The Ottoman Empire's lifespan of 623 years makes it one of the longest-lasting empires in history.

Final Thoughts

The countries that no longer exist remind us that the world map is not permanent — it is a snapshot of a particular moment in the endless process of political change. Empires rise and fall, colonies gain independence, nations merge and split. Understanding the countries that have disappeared helps us understand the ones that exist today — because every current border, conflict, and alliance has roots in the nations that came before.