In the beginning of 1996, several human rights groups brought cases to hold Shell accountable for alleged human rights violations in Nigeria, including summary execution, crimes against humanity, torture, inhumane treatment and arbitrary arrest and detention. In particular, Shell stood accused of collaborating in the execution of Ken Saro-Wiwa and eight other leaders of the Ogoni tribe of southern Nigeria, who were hanged in 1995 by Nigeria's then military rulers. The lawsuits were brought against Royal Dutch Shell and Brian Anderson, the head of its Nigerian operation. In 2009, Shell agreed to pay $15.5m in a legal settlement. Shell has not accepted any liability over the allegations against it.
In contrast to its agreement to settle the 1996 lawsuits, Shell refused to do what?
accepted any liability over the allegations against it

A Federal Trade Commission report issued in 1958 attempted to quantify the effect of antibiotic development on American public health. The report found that over the period 1946-1955, there was a 42% drop in the incidence of diseases for which antibiotics were effective and only a 20% drop in those for which antibiotics were not effective. The report concluded that "it appears that the use of antibiotics, early diagnosis, and other factors have limited the epidemic spread and thus the number of these diseases which have occurred". The study further examined mortality rates for eight common diseases for which antibiotics offered effective therapy (syphilis, tuberculosis, dysentery, scarlet fever, whooping cough, meningococcal infections, and pneumonia), and found a 56% decline over the same period. Notable among these was a 75% decline in deaths due to tuberculosis.
Who issued a report describing the effects of antibiotic developments?
Federal Trade Commission

The Byzantines were able to regain control of the country after a brief Sasanian Persian invasion early in the 7th century amidst the ByzantineSasanian War of 602628 during which they established a new short-lived province for ten years known as Sasanian Egypt, until 63942, when Egypt was invaded and conquered by the Islamic Empire by the Muslim Arabs. When they defeated the Byzantine Armies in Egypt, the Arabs brought Sunni Islam to the country. Early in this period, Egyptians began to blend their new faith with indigenous beliefs and practices, leading to various Sufi orders that have flourished to this day. These earlier rites had survived the period of Coptic Christianity.
Who took control of Egypt from Sasanian Persian rule?
Byzantines