What method of treatment did doctors use to remove the humors they believed caused the plague in their patients?

While it could easily result in accidental death from blood loss, phlebotomy endured as a common medical practice well into the 19th century. Medieval doctors prescribed blood draining as a treatment for everything from a sore throat to the plague, and some barbers listed it as a service along with haircuts and shaves.

Explanation:

i can try to solve it just show the graph.

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.