What is associated with: after helping jefferson davis make bail in 1867 this new hork tribune publisher lost about half his readers?

Based on the clue 'after hearing the variations on don giovanni rober...', what is the answer? Based on the clue 'after hearing this invention of his work edison sa...', what is the answer? Based on the clue 'after heart of darkness he wrote nostromo about th...', what is the answer? Based on the clue 'after helium its the next noble gas on the table', what is the answer? Based on the clue 'after helping out in the american revolution tadeu...', what is the answer? Based on the clue 'after helping the americans win the battle of sara...', what is the answer? Based on the clue 'after helping to organize the afl he headed it for...', what is the answer? Based on the clue 'after henrys death this woman his sixth wife marri...', what is the answer?