<span>The answer is B
The new agreement helped big business by reducing the power of unions in the United States. In particular, it meant that trade unions could no longer demand that only trade unionists be hired by companies, or participate in secondary boycotts of companies that sold or manipulated non-union goods.
A. The 1956 National Interstate and Defense Highway Law
B. The Taft-Hartley Act of 1947
C. The 1944 Officer Readjustment Act
D. The William Levitt Act of 1958</span>
The correct answer is B) No historians have written about the era that preceded the ancient era.
The option that could be a reason why humans know very little about the time before the ancient era is that no historians have written about the era that preceded the ancient era.
We are referring to what is cold prehistory, the time where events occurred before the existence of written records. Historians write what they can research or interpret written records from the past such as the clay tablets of Sumer-Mesopotamia or the Egyptians glyphs due to the Rosetta Stone. But without written records, all is speculation, that is why humans know so little about prehistory.
Answer:
Harvard (founded 1636, in Cambridge Massachusetts)
These characteristics describe the requirements of becoming a senator.
