Problem: Ivan IV Vasilyevich (Russian: Ivan Vasil'evich, tr. Ivan Vasilyevich; 25 August 1530 - 28 March [O.S. 18 March] 1584), commonly known as Ivan the Terrible or Ivan the Fearsome (Russian: Ivan Groznyi , Ivan Grozny; a better translation into modern English

Despite calamities triggered by the Great Fire of 1547, the early part of Ivan's reign was one of peaceful reforms and modernization. Ivan revised the law code, creating the Sudebnik of 1550, founded a standing army (the streltsy), established the Zemsky Sobor (the first Russian parliament of the feudal Estates type) and the council of the nobles (known as the Chosen Council), and confirmed the position of the Church with the Council of the Hundred Chapters (Stoglavy Synod), which unified the rituals and ecclesiastical regulations of the whole country. He introduced local self-government to rural regions, mainly in the northeast of Russia, populated by the state peasantry. By Ivan's order in 1553 the Moscow Print Yard was established and the first printing press was introduced to Russia. Several religious books in Russian were printed during the 1550s and 1560s. The new technology provoked discontent among traditional scribes, leading to the Print Yard being burned in an arson attack. The first Russian printers, Ivan Fedorov and Pyotr Mstislavets, were forced to flee from Moscow to the Grand Duchy of Lithuania. Nevertheless, printing of books resumed from 1568 onwards, with Andronik Timofeevich Nevezha and his son Ivan now heading the Print Yard. Ivan had St. Basil's Cathedral constructed in Moscow to commemorate the seizure of Kazan. There is a false legend that he was so impressed with the structure that he had the architect, Postnik Yakovlev, blinded so that he could never design anything as beautiful again. In reality, Postnik Yakovlev went on to design more churches for Ivan and the walls of the Kazan Kremlin in the early 1560s, as well as the chapel over St. Basil's grave that was added to St. Basil's Cathedral in 1588, several years after Ivan's death. Although more than one architect was associated with this name and constructions, it is believed that the principal architect is one and the same person. Other events of this period include the introduction of the first laws restricting the mobility of the peasants, which would eventually lead to serfdom, instituted during the rule of future tsar Boris Godunov in 1597. (See also Serfdom in Russia.)

what year was the law established?

Answer with quotes: in 1597.

Problem: Cullen was born in Hamilton, Lanarkshire. His father William was a lawyer retained by the Duke of Hamilton as factor, and his mother was Elizabeth Roberton of Whistlebury. He studied at the Old Grammar School of Hamilton (renamed in 1848 The Hamilton Academy), then, in 1726, began a General Studies arts course at the University of Glasgow. He began his medical training as apprentice to John Paisley, a Glasgow apothecary surgeon, then spent 1729 as surgeon on a merchant vessel trading between London and the West Indies.

In 1755 he was enticed by Lord Kames to become Professor of Chemistry and Medicine at the University of Edinburgh. It was in Edinburgh, in 1756, that he gave the first documented public demonstration of artificial refrigeration. Cullen used a pump to create a partial vacuum over a container of diethyl ether, which then boiled, absorbing heat from the surroundings. This created a small amount of ice, but the process found no commercial application. From 1757 he delivered lectures on clinical medicine in the Edinburgh Royal Infirmary. On the death of Charles Alston in 1760, Cullen at the request of the students undertook to finish his course of lectures on materia medica; he delivered an entirely new course, notes of which were published in an unauthorised edition in 1771, but which he re-wrote and issued as A Treatise on Materia Medica in 1789. On the death of Robert Whytt, the professor of the institutes of medicine, Cullen accepted the chair, at the same time resigning that of chemistry. In the same year he had been an unsuccessful candidate for the professorship of the practice of physic (medicine), but subsequently an arrangement was made between him and John Gregory, the successful candidate, by which they both agreed to deliver alternate courses on the theory and practice of medicine. This arrangement continued until the sudden death of Gregory in 1773. Cullen was then appointed sole professor of the practice of physic, and he continued in this office until a few months before his death. In 1783 Cullen (together with his sons) was a co-founder of the Royal Society of Edinburgh. He died on 5 February 1790 in Kirknewton, West Lothian, and is buried in the churchyard there. His son Robert lies with him.

Why did he go there?

Answer with quotes:
he was enticed by Lord Kames to become Professor of Chemistry and Medicine at the University of Edinburgh.