Based on the clue 'after caligulas assassination this stammerer was f...', what is the answer?

Based on the clue 'after buying manhattan for the dutch he bought wha...', what is the answer? Based on the clue 'after buying the tribune company he promised to se...', what is the answer? Based on the clue 'after c everett flew the koop antonia novello beca...', what is the answer? Based on the clue 'after cain slew abel adam knew his wife again and ...', what is the answer? Based on the clue 'after campaigning against the nukes he developed a...', what is the answer? What is associated with: after capturing atlanta in september of 1864 he told its mayor war is cruelty and you cannot r… What is associated with: after capturing less than 1 of the vote in 1996 he was again the green partys nominee for pres… What is associated with: after carrier came up with this in 1902 my 20 babes waving palm fronds idea went out the windo…