Thailand, 1977 — military coup

Wikipedia's disambiguation between the March 1977 attempted coup and the October 1977 successful coup was resolved by fetching the correct article (October 1977 Thai coup d'état). Some biographical detail on Kriangsak (e.g., precise succession mechanics) came only from Wikipedia's named secondary sources (NYT, The Economist, Washington Post, and Chai-Anan Samudavanija's book) which I could not fetch directly this session, so those are labeled CHAIN rather than VERIFIED. The primary VERIFIED source is the contemporaneous U.S. Embassy Bangkok cable published in the State Department's Foreign Relations of the United States series, which directly corroborates the date, bloodless nature, and immediate aftermath of the coup. | Verification method: fetched the FRUS document (history.state.gov/historicaldocuments/frus1977-80v22/d160) three times with different extraction prompts to cross-check all four VERIFIED facts against the actual cable text, then independently fetched the Wikipedia article and ran a web search to confirm it exists, is the correct (October, not March) 1977 Thai coup article, and carries the named citations (NYT 10/21/1977, Economist 1/8/2004, Washington Post 2/29/1980, Chai-Anan Samudavanija 1982) claimed for the three CHAIN facts. Findings/corrections: 1. Facts 1, 2, and 4 (Government House timing/broadcast, Thanin/cabinet free-but-restricted, orderly-and-bloodless assessment) are all directly and almost verbatim confirmed in the cable text. No change to substance; fact 2's quote was tightened to the exact cable wording ('...are not under arrest or custody...'), since the original entry silently truncated the quote mid-sentence and appended a false period. 2. Fact 3 was overstated and its quotation was not verbatim. The cable does NOT say the coup group 'secured royal approval' — it says the six leaders announced they had been 'granted an audience with the King.' An audience is not the same as approval, and the original quoted fragment ('one of six key leaders of the RP') does not appear verbatim anywhere in the source (the actual text is 'six key leaders of the RP, including Gen. Kriangsak...'). I rewrote fact 3 to state only what the cable actually supports and replaced the quote with the genuine verbatim passage. Kept the VERIFIED label since the corrected, narrower claim is fully supported by the same primary source. 3. Target leader claim (Thanin Kraivichien, PM) is directly and unambiguously confirmed by the cable ('Former Prime Minister Thanin...'). 4. All three CHAIN facts check out: the Wikipedia article exists, is the correct October 1977 coup article (not the failed March 1977 attempt), and each claim maps to a named, plausible secondary source as claimed. Left as CHAIN (not upgraded) since I did not independently pull the NYT/Economist/WaPo/Chai-Anan originals — only confirmed Wikipedia cites them for these claims, and one (WaPo resignation piece) was independently found live via search. 5. The summary contained one clause with no supporting fact anywhere in the entry: 'who had held office since the harsh right-wing government installed after the October 1976 coup.' This was removed. The summary's claim of 'royal approval' was also softened to match what fact 3 now actually supports ('granted an audience with the King' rather than 'royal approval'). All other summary claims map to a sourced fact.