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 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 bans 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[10]
^A magyar béketárgyalások. Jelentés a magyar békeküldöttség működéséről [The Hungarian peace negotiations. Report on the operation of the Hungarian peace delegation.] (Report) (in Hungarian). Vol. 1. Budapest: Ministry of Foreign Affairs. 1920. pp. 276–281.
^Székelyföld autonómiája a két világháború közti erdélyi magyarrendezési tervekben (1918–1940) [The autonomy of Székelyföld in the Transylvanian Hungarian settlement plans between the two world wars (1918–1940)] (in Hungarian), p. 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. New York: Random House.