Why was the development of zero an important advancement in math? A. Zero could be used to create integers.
B. Zero was used to represent a large value.
C. Zero could be used as a placeholder or to write larger numbers.
D. Zero was used by Indian astronomers to calculate the sizes of stars.
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hhebeueubevcje. he. me. e beben

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.

i believe george gallup used a poll in 1936