Three words that describe a historian may be:
Expert, recorder, and knowledgeable
His expedition lasted 2 years.
Most of the women polled during research for The Feminine Mystique were homemakers - b.
The reason why the polled women in this case were homemakers and weren't professionals or college students was due to the specificity of the sample and the times in which this research was conducted.
The Office of Strategic Services (OSS) was a wartime intelligence agency of the United States during World War II, and a predecessor of the modern Central Intelligence Agency (CIA). hope it helps.