Answer:
The percentage of the European population who died due to the black death ranges from 30 to 50%, and in some urban areas, especially in southern European countries like Italy, 60-70 and even 80% of the population died.
The black death was very contagious, had an extremely high mortality rate, and medicine at the time had no means to combat the disease, hence the very high death toll of the plague.
Saratoga- the continental army preserved and won the decimated burgoynes troops, cut off supply routes and Burgoyne never received his promise and desperately needed reinforcements ( found online so change to oun words)
Yorktown-after three weeks of nonstop bombardment birthday and night from artillery Cornwallis surrendered to Washingtonian the field at Yorktown ending the war ( also found online)
I think it’s true but I would get a second opinion