Byzantine Architectural Marvels: Hagia Sophia, Sergius & Bacchus, Gracanica

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Byzantine Architecture

We are going to look at three examples of Byzantine architecture in this lecture:

  • Hagia Sophia, which used a system of pendentives, domes, half-domes, and exedrae to create one of the world’s greatest examples of engineering

The Church of Saints Sergius and Bacchus, which utilized a domical vault to span its central space

Gracanica Church, which offers an excellent example of a cross-in-square church

  • The major goal of Byzantine architecture was to dematerialize space.
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Liberal State in Spain: Isabel II to Alfonso XIII

The Liberal State in Spain

6.3 Implementation of the Liberal State

The Reign of Isabel II (1833-1868)

During Isabel’s minority, her mother acted as regent. This period was marked by civil war between the Liberals (supporting Isabel II) and the Absolutists (supporting Carlos). The defeat of the Carlists led to the introduction of a liberal political system in Spain.

In 1843, Isabel reached the age of majority. Her reign (1843-1868) was characterized by political instability.

Three major periods are distinguished:

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Key Political Terms and Concepts of Modern History

Key Political Terms and Concepts

  1. Absolutism: The legislative, judicial, and executive powers are controlled by one person.
  2. Tax: A percentage of money that you have to pay to the government or king. They then use that money for public spending.
  3. Separation of Powers: In a democracy, the government has a separation of powers. One group is in charge of judicial power, another of legislative power, and another of executive power.
  4. Estate: A territory that is politically independent of another community.
  5. Human
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US Leadership, Cold War, and Post-Cold War Era Analysis

US Leadership and the Cold War

The Rise of American Dominance: Following World War II, the United States emerged as a dominant global power. President Roosevelt initiated a policy of recognizing the USSR in 1933. However, by 1945, this policy shifted towards containing Soviet influence. The goal was to ensure the continuation and development of the US system, even without the threat from the USSR. This led to a vast network of political and military alliances. The main adversaries, Germany and Japan,

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Rise of Stalin and the Russian Revolution: 1917-1940

Stalin’s USSR

The Government of Lenin (War Communism)

The new government faced a civil war that lasted three years. A fraction of the Tsarist army organized the White Army to rise up in arms.

The Bolsheviks created the Red Army, led by Leon Trotsky. In 1922, the USSR was created to be governed by a parliament and a single party called the CPSU, which controlled political life. It was a totalitarian system that was justified by the dictatorship of the proletariat.

When the civil war ended, Lenin decided

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18th Century Europe: Revolutions and Their Impact

The Eighteenth Century: The Crisis of the Old Regime

The Era of Revolutions

The Enlightenment of the Eighteenth Century (The Age of Enlightenment)

An intellectual movement in Europe that went against the old regime (absolute monarchy) and preached the separation of powers:

  1. Executive power (government)
  2. Legislative power (parliament)
  3. Judicial power (courts)

Key thinkers: John Locke, Isaac Newton, Montesquieu, Voltaire, Diderot, Rousseau.

Independence of the United States of America

1773: 13 British colonies

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