Master the UN Membership Timeline: 38 Flashcards on Admissions, Splits and Successions

Flip It's deck United Nations: History & Member States (code FW3963, 38 cards) looks like a general UN primer, but about 28 of its 38 cards are really a state-succession quiz: who split, who merged, who inherited whose seat, and on what date. Study it as a decolonisation-and-dissolution timeline and it becomes one of the most efficient political-geography decks in the library.

What the cards actually ask

Full coverage: 193 member states, 51 original members, the San Francisco signing of June 26 1945, the two-thirds General Assembly admission rule, the P5 and the 10 elected two-year seats, the six official languages, Resolution 2758 and the 1971 China seat, Indonesia's 1965-66 walkout, Zaire, Tanganyika plus Zanzibar, North and South Yemen, the two Germanys of 1973 and reunification in 1990, the Federal Republic of Yugoslavia, Bosnia and Croatia and Slovenia in May 1992, Montenegro in 2006, Israel in 1949, the four African founding members, the Palace of Nations in Geneva, the ICJ in The Hague, WHO, ILO, UNESCO, UNICEF, and the Holy See and State of Palestine as observer states.

Two cards contradict each other — fix them first

Card 27 says India joined on October 24 1945 as a founding member. Card 37 says India and Pakistan gained independence and joined the UN in 1947. Both cannot be right. India signed the Charter in June 1945 and its admission date is October 30 1945; only Pakistan joined in 1947, on September 30. Rewrite the second front as Which country joined the UN after the Partition of India? — the contradiction disappears and you gain a real fact.

Second correction, card 21: South Africa was not suspended from the UN between 1974 and 1994. The General Assembly rejected its delegation's credentials, so it lost its Assembly seat, but it remained a member state throughout. Add "from General Assembly participation" to that back.

Two tips that fit this deck

Sort by event, not by date. Nine cards belong to just four events: the Soviet break-up, the Yugoslav break-up, the German story, and the Yemen and Tanzania mergers. Learn each event as a cluster of member states and its dates stop being interchangeable numbers.

Split off the last block. Cards 30-36 (WHO, UNESCO, UNICEF, ILO, the ICJ, Council composition, official languages) are institutional trivia bolted onto a membership deck — different subject, different retrieval cue, so run them separately. Note too what the deck never names: the six principal organs as a set, the Secretary-General, and the veto. Write those four cards yourself before your first review.

Open the deck by its code FW3963 in your Flip It library at flip-it.app. For the conceptual side of the same category, see How to Study Political Systems and Regime Types.