HIST 210 - Lecture 22 - Vikings / The European Prospect, 1000

In the first part of this lecture, Professor Freedman discusses the emergence of the  Vikings from Scandinavia in the ninth and tenth centuries.  The Vikings were highly adaptive, raiding (the Carolingian Empire), trading (Byzantium and the Caliphate) or settling (Greenland and Iceland) depending on local conditions. Through their wide-ranging travels, the Vikings created networks bringing into contact parts of the world that were previously either not connected or minimally so.

HIST 210 - Lecture 21 - Crisis of the Carolingians

In this lecture, Professor Freedman discusses the crisis and decline of Charlemagne’s empire.  Increasingly faced with external threats – particularly the Viking invasions – the Carolingian Empire ultimately collapsed from internal causes, because its rulers were unable  effectively to manage such a large empire. In the absence of strong social infrastructure and an idea of loyalty to the ruler, government servants strove to make their positions hereditary and nobles sought to set up independent kingdoms.

HIST 210 - Lecture 20 - Intellectuals and the Court of Charlemagne

In this lecture, Professor Freedman discusses the Carolingian Renaissance, the revival of learning sponsored by Charlemagne and his successors. The period before the Carolingians saw a decline in learning, evidenced in part by the loss of lay literacy. As literacy became the purview of clerics, monasteries set up scriptoria in order to copy manuscripts on a larger scale. In this context, the Carolingians sponsored a revival of learning both for the sake of bringing educated people into the government and in order to encourage the piety of the people.

HIST 210 - Lecture 19 - Charlemagne

In this lecture, Professor Freedman discusses the Carolingian dynasty from its origins through its culmination in the figure of Charlemagne. The Carolingians sought to overthrow the much weakened Merovingian dynasty by establishing their political legitimacy on three bases: war leadership, Christian rule, and the legacy of Rome.  Charlemagne’s grandfather Charles Martel won a major victory over the Muslims in 733 at the Battle of Poitiers. Charlemagne’s father Pepin the Short allied the Carolingians with the papacy at a time when the latter was looking for a new protector.

HIST 210 - Lecture 18 - The Splendor of Byzantium

In this lecture, Professor Freedman surveys major trends in Byzantine history from the sixth to eleventh century, dividing the era into four periods.   In the sixth century, under Justinian’s rule, the Byzantine Empire experienced a period of expansion (532-565).  However, the Empire was unable to hold on to Justinian’s hard won territories and so contracted for over a century of crisis that threatened its survival (565-717).  In the next period, (717-843), the Byzantine army was reorganized and the Empire was able to regain some lost territory.  At the same time, the empir

HIST 210 - Lecture 17 - The Crucial Seventh Century

In the first half of this lecture, Professor Freedman continues the previous lecture’s discussion of the Abbasids. He highlights their ability to assimilate other cultures, before turning to their decline in the tenth century. In the second half of the lecture, Professor Freedman considers the seventh century, the crucial turning point in the history of early medieval Europe.

HIST 210 - Lecture 16 - The Splendor of the Abbasid Period

In this lecture, Professor Freedman discusses the Abbasid dynasty, which ruled the Islamic Caliphate beginning in 750. The Abbasids moved the capitol of the Caliphate to the newly-built city of Baghdad and created a state characterized by a strong administration and well-organized tax system. The state sponsored a cultural flowering, based in part on the translation of classical Greek and Roman texts. Professor Freedman ends the lecture by focusing on developments in mathematics and astronomy.

HIST 210 - Lecture 15 - Islamic Conquests and Civil War

In this lecture, Professor Freedman discusses the Islamic conquests.  Although they were in some sense religiously motivated, Arab did not attempt to forcibly convert or eradicate Jews, Christians, or other non-Muslims.  The conquests began as raids, but quickly escalated when the invaders discovered that Byzantium and Persia were too weak to withstand their assault. In a relatively short period of time, the Arabs were able to conquer an area stretching from Spain to India.  Against this background of successful conquests, Islam began to experience deep internal divisions.

HIST 210 - Lecture 14 - Mohammed and the Arab Conquests

In this lecture, Professor Freedman introduces Islam. He begins with a discussion of its geographical context: the dry desert lands of the Arabian peninsula. The Bedouins, or nomadic Arabs of the region, lived in a tribal society somewhat similar to the Germanic tribes discussed earlier in the course.  Their raids against the Byzantine and the Persian Empire, for lack of strong opposition, would lead to the Arab conquests. The second half of the lecture focuses on the life of Mohammed (570/580 – 632) and the early years of Islam.

CHEM 125b - Lecture 38 - Review: Synthesis of Cortisone

Discoverers of the structure and biological activity of steroid hormones won seven Nobel Prizes between 1927 and 1975. Studying the steps involved in Woodward’s 1951 “total” synthesis of cortisone provides a review of the organic reactions covered this semester. Many steps involved novel insights, others were based on lore from previous work in the area. The overall yield of such sequential syntheses is typically much lower than that of convergent syntheses. Practical syntheses of cortisone were based on modification of related steroids readily available from nature.

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