February 10 – Allied Military Mission leaves Budapest[3]
February 25 – Romania begins withdrawal from Tiszántúl
February 27 – Law 1920:I, the assembly will elect a provisional regent until the question of the head of state is settled[4]
March
Hungary begins secret negotiations with the new French government of Millerand for the re-negotiation of the Trianon borders in exchange for economic concessions to the French.
March 1
Hungary restores the Monarchy
Miklós Horthy elected as regent
French troops withdraw from Szeged
March 15 – Simonyi-Semadam Government formed
March 30 – Romania finishes withdrawal from Tiszántúl
May
May 12 – Hungary presents its border proposal to the French government: they ask for all Hungarian-populated areas along the Trianon borders, referendums in the Banat and Burgerland, Carpathean Ruthenia and Eastern Slovakia for "economic reasons". The proposal was unacceptable for the French party, leading to the end of the secret negotiations.
May 18 – Minister of the Interior Mihály Dömötör banns freemasonry by decree
September 26 – Numerus Clausus quota passed, limiting nationalities in university admissions to their share in the population. In practice, this limits the admission of Jewish students.[11]
October
October 20 – Order of Vitéz founded
November
November 10 – Murder of police officer Soltra József[12]
November 11 – The government cracks down on far-right paramilitaries in Hotel Britannia and Ehman-telep[13]
^A magyar béketárgyalások. Jelentés a magyar békeküldöttség működéséről. I. köt., Külügyminisztérium, Bp., (1920). pp. 276–281 & Székelyföld autonómiája a két világháború közti erdélyi magyarrendezési tervekben (1918–1940) pp. 7
Bartha, Á. (2019). Az utolsó csepp a pohárban. Soltra József rendőr meggyilkolása. Csoportosulás, lázadás és a társadalom terrorizálása. Rendészettörténeti Tanulmányok, 2, 28–44.
Gusztáv, G. (1992). A forradalmak kora: Magyarország története: 1918-1920. Magyar Szemle Társaság.
MacMillan, M. (2003). Paris 1919: six months that changed the world. Random House trade paperback ed. New York, Random House.
Murber, Ibolya (2021). Nyugat-Magyarországtól Burgenlandig, 1918-1924. Budapest, BTK Történettudományi Intézet
Ormos, M. (1998). Magyarország a két világháború korában, 1914-1945 (Vol. 6). Csokonai Kiadó.
Várdy, Stephen Béla (1997). Historical Dictionary of Hungary. The Scarecrow Press