Answer:
1.The Ottoman Turks conquered Constantinople
2. Western countries launched a series of crusades
3.The fourth crusade attacked and sacked the city of Constantinople
In reality yes and no. The assassination of Franz Ferdinand did occur in the Balkans, and was the result of a situation in the Balkans. However Franz Joseph declared war for other reasons as well. This is a topic I encourage you to research on your own. Not only if the cause came truly from the Balkans, but also if it was really "foolish".
The Great War channel on youtube has a lot of educational and helpful content regarding world war one's causes if you look for their "Prelude to war" specials in their channel.
Sir Robert Peel developed the first professional police force supported by the government in England.
<h3>Who was
Sir Robert Peel?</h3>
He was the British prime minister and founder of the Conservative Party. He was responsible for the repeal (1846) of the Corn Laws that had restricted imports.
Peel was the eldest son of a wealthy cotton manufacturer, Robert Peel who was made a baronet by William Pitt the Younger. The younger Robert was educated at Harrow and at Oxford, and, with his father’s money, a parliamentary seat was found for him as soon as he came of age, in 1809.
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I think the berlin wall represented a barrier between the two halves of germany and to east side it meant death and feeling boxed in and to the west it meant separation from the rest of germany.