1st Modern Submarine
Mar 17 John Philip Holland achieves successful test run for the first modern submarine off Staten Island, submerging for 1 hour 40 minutes
- Mar 25 60th Grand National: John Gourley wins aboard 25/1 shot Drogheda
- Mar 25 Intercollegiate Trapshooting Association formed in NYC
- Mar 25 Swami Vivekananda initiates Margaret Noble (Sister Nivedita) into vow of Brahmacharya, first western woman received into Indian monastic order
Writer O. Henry Sentenced
Mar 25 Writer O. Henry sentenced to 5 years in prison for embezzling $854 from a bank reportedly to pay for his sick wife's medical bills. Goes on to write many classics while in jail including "Whistling Dick's Christmas Stocking".
- Mar 26 Sabi Game Reserve opens in South Africa, the world's 1st officially designated game reserve; now part of Kruger National Park
- Mar 26 Sabie Game Reserve proclaimed in the Transvaal - the beginnings of Kruger National Park