Elihu Root Senator
Mar 4 Elihu Root begins his tenure after being elected United States Senator for New York
- Mar 4 US prohibits interstate transportation of game birds
William Howard Taft
Mar 4 William Howard Taft inaugrated as 27th US President during 10" snowstorm
- Mar 6 Dutch film distributor Jean Desmet opens his first permanent cinema, the Cinema Parisien in Rotterdam
Griselda
Mar 6 Gerhart Hauptmann's play "Griselda" premieres in Vienna
- Mar 12 Alarmed over increasing German naval strength, Parliament passes a new naval appropriations bill
- Mar 14 Amsterdam Social-Democratic Party (SDP) forms
- Mar 18 Einar Dessau of Denmark makes 1st ham broadcast
- Mar 18 Russia and Bulgaria reach an agreement in which late 19th century Russian financial claims are cancelled to meet compensation due to Turkey from Bulgaria
- Mar 21 Germany sends Russia a diplomatic notes requesting recognition of the Austrian annexation of Bosnia and Herzegovina and cessation of support to Serbia in the controversy
- Mar 21 Moran & MacFarland (US) wins Europe's 1st 6 day bicycle race (Berlin)
- Mar 26 71st Grand National: Georges Parfrement wins aboard French 100/9 hope Lutteur III
- Mar 26 August Strindberg's "Bjalb-jarle-ti" premieres in Stockholm
- Mar 26 In support of Mohammed Ali Shah's coup d'etat against the constitutional government in Persia, a Russian military force invades northern Persia to relieve the siege of Tabriz
- Mar 30 New York's Queensboro Bridge opens, linking Manhattan & Queens
Mahler Conducts NY Philharmonic
Mar 31 Gustav Mahler conducts New York Philharmonic for his 1st time
- Mar 31 In a diplomatic note to Austria, Serbia recognizes the Bosnian annexation and promises to maintain friendly relations with Austria
- Mar 31 National Baseball Commission rules players who jump contracts to be suspended for 5 years; players joining outlaw organizations suspended for 3 years
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