Misc: the fleas of which animal carried the plague known as the black death??

Questions

In 1926 (FRANCE) Claude---------- , imperssionist painter, dies. ?

In 1896 (USA) Ira---------- , composer, born. ?

In 1958 ---------- launch Pioneer III. ?

In 43BC The Roman politician, ---------- , is slain. ?

In 1917 USA declares ---------- on the Prussian-Hungarian forces, joining World War One on the side of the Allies. ?