Misc: To which part of the body does the adjective 'renal' refer?

Questions

In 1861 Fort Sumter, SC, shelled by ---------- troops under General Beauregard. The American Civil War begins.?

In 1934 Highest velocity wind ever recorded on Mt Washington, ---------- mph.?

In 1945 Franklin D. Rooseveldt dies of a ---------- in Warm Springs, Ga.?

In 1961 Yuri A. Gagarin becomes first man to orbit Earth aboard ---------- 1.?

In 1979 ---------- 33 returns to Earth.?