Problem: The 1977 Knesset elections marked a major turning point in Israeli political history as Menachem Begin's Likud party took control from the Labor Party. Later that year, Egyptian President Anwar El Sadat made a trip to Israel and spoke before the Knesset in what was the first recognition of Israel by an Arab head of state. In the two years that followed, Sadat and Begin signed the Camp David Accords (1978) and the Israel–Egypt Peace Treaty (1979). In return, Israel withdrew from the Sinai Peninsula, which Israel had captured during the Six-Day War in 1967, and agreed to enter negotiations over an autonomy for Palestinians in the West Bank and the Gaza Strip.
What did Sadat and Begin sign?
The answer is the following: Camp David Accords

Problem: During this critical period, the number of Preachers seems never to have sunk below 3,500. Statistics for 1876 show 3,748, but 500 of these had been expelled from their convents and were engaged in parochial work. Statistics for 1910 show a total of 4,472 nominally or actually engaged in proper activities of the order. In the year 2000, there were 5,171 Dominican friars in solemn vows, 917 student brothers, and 237 novices. By the year 2013 there were 6058 Dominican friars, including 4,470 priests.
In what year were there 4,470 priests in the Dominican Order?
The answer is the following: 2013

Problem: Houston is the seat of the internationally renowned Texas Medical Center, which contains the world's largest concentration of research and healthcare institutions. All 49 member institutions of the Texas Medical Center are non-profit organizations. They provide patient and preventive care, research, education, and local, national, and international community well-being. Employing more than 73,600 people, institutions at the medical center include 13 hospitals and two specialty institutions, two medical schools, four nursing schools, and schools of dentistry, public health, pharmacy, and virtually all health-related careers. It is where one of the first—and still the largest—air emergency service, Life Flight, was created, and a very successful inter-institutional transplant program was developed. More heart surgeries are performed at the Texas Medical Center than anywhere else in the world.
Where in Houston is the world's largest grouping of healthcare institutions?
The answer is the following: Texas Medical Center

Problem: Von Neumann made fundamental contributions to mathematical statistics. In 1941, he derived the exact distribution of the ratio of the mean square of successive differences to the sample variance for independent and identically normally distributed variables. This ratio was applied to the residuals from regression models and is commonly known as the Durbin–Watson statistic for testing the null hypothesis that the errors are serially independent against the alternative that they follow a stationary first order autoregression.
When did von NEumann establish mean square ratio?
The answer is the following:
1941