ved . ▁ ▁In ▁North ▁B end , ▁Ohio ▁( a ▁sub urb ▁of ▁C inc inn ati ), ▁the ▁first ▁train ▁rob ber y ▁in ▁the ▁United ▁States ▁takes ▁place . ▁ ▁May ▁ 1 0 ▁ ▁American ▁Civil ▁War : ▁Jefferson ▁Davis ▁is ▁captured ▁by ▁Union ▁troops ▁near ▁Ir win ville , ▁Georgia . ▁ ▁Wor c ester ▁Poly techn ic ▁Institute ▁is ▁founded ▁in ▁Massachusetts . ▁ ▁May ▁ 1 2 – 1 3 ▁– ▁American ▁Civil ▁War : ▁Battle ▁of ▁Pal m ito ▁R anch ▁– ▁In ▁far ▁south ▁Texas , ▁more ▁than ▁a ▁month ▁after ▁Confeder ate ▁General ▁Lee ' s ▁surrender , ▁the ▁last ▁land ▁battle ▁of ▁the ▁Civil ▁War ▁with ▁cas ual ties ▁ends ▁with ▁a ▁Confeder ate ▁victory . ▁ ▁May ▁ 2 3 ▁– ▁Grand ▁Review ▁of ▁the ▁Arm ies : ▁Union ▁Army ▁troops ▁para de ▁down ▁Pennsylvania ▁Avenue ▁( W ashington , ▁D . C .) ▁to ▁celebr ate ▁the ▁end ▁of ▁the ▁Civil ▁War . ▁ ▁May ▁ 2 5 ▁– ▁Mobile ▁magazine ▁explos ion : ▁ 3 0 0 ▁are ▁killed ▁in ▁Mobile , ▁Alabama ▁when ▁an ▁ord n ance ▁dep ot ▁expl odes . ▁ ▁May ▁ 2 6 ▁– ▁Ind igen ous ▁tribes ▁who ▁have ▁supported ▁the ▁Confeder ate ▁States ▁of ▁America ▁hold ▁the ▁Camp ▁Napoleon ▁Council ▁in ▁Indian ▁Territ ory ▁( mod ern - day ▁Oklahoma ). ▁ ▁June ▁ 2 ▁– ▁American ▁Civil ▁War : ▁Confeder ate ▁forces ▁west ▁of ▁the ▁Mississippi ▁under ▁General ▁Edmund ▁Kir by