April 1931

april 1 – second encirclement campaign against jiangxi soviet in china launched kuomintang government destroy communist forces in jiangxi province.
april 6 – portuguese government declares martial law in madeira , in azores because of attempted military takeover in funchal.
april 9 – argentinian anarchist severino digiovanni executed.
april 12 – municipal elections in spain, treated virtual referendum on monarchy, result in triumph republican parties.
april 14 – second spanish republic proclaimed in madrid. meanwhile, result of victory of republican left of catalonia, francesc macià proclaims in barcelona catalan republic, state of iberian federation.
april 15 – castellammarese war ends murder of joe boss masseria, briefly leaving salvatore maranzano capo dei capi ( boss of bosses ) of american mafia. maranzano himself murdered less 6 months later, leading creation of commission.
april 17 – after negotiations between republican ministers of spain , catalonia, catalan republic becomes generalitat of catalonia, catalan autonomous government inside spanish republic.
april 22 – austria, uk, denmark, germany, italy, sweden , united states recognize spanish republic.
april 25 – automobile manufacturer porsche founded ferdinand porsche in stuttgart.