At the time, there were many varying opinions about Christian doctrine, and no centralized way of enforcing orthodoxy. Constantine called all the Christian bishops throughout the Roman Empire to a meeting, and some 318 bishops (very few from the Western Empire) attended the First Council of Nicaea. The purpose of this meeting was to define Christian orthodoxy and clearly differentiate it from Christian heresies. The meeting reached consensus on the Nicene Creed and other statements. Later, Philostorgius criticized Christians who offered sacrifice at statues of the divus Constantine. Constantine nevertheless took great pains to assuage traditionalist and Christian anxieties.
How many bishops attended the First Council?
318

Friedrich August von Hayek was born in Vienna to August von Hayek and Felicitas Hayek (nee von Juraschek). Friedrich's father, from whom he received his middle name, was also born in Vienna in 1871. He was a medical doctor employed by the municipal ministry of health, with passion in botany, in which he wrote a number of monographs. August von Hayek was also a part-time botany lecturer at the University of Vienna. Friedrich's mother was born in 1875 to a wealthy, conservative, land-owning family. As her mother died several years prior to Friedrich's birth, Felicitas gained a significant inheritance which provided as much as half of her and August's income during the early years of their marriage. Hayek was the oldest of three brothers, Heinrich (190069) and Erich (190486), who were one-and-a-half and five years younger than him.
What was August von Hayek particularly passionate about?
botany

The control unit, ALU, and registers are collectively known as a central processing unit (CPU). Early CPUs were composed of many separate components but since the mid-1970s CPUs have typically been constructed on a single integrated circuit called a microprocessor.
Since when have CPUs been constructed with a microprocessor?
mid-1970s