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Key points

  • The in the took place over a period lasting nearly 200 years.
  • The consequences of the Crusades can still be felt in the world today.
  • The Crusades had an impact on many areas including trade, finance, architecture and science.
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The impact of the Crusades

Knights in front of a concentric castle are sent Crusade by the Pope. A map shows the rough route from Europe to Jerusalem. Gunpowder, numbers 0,1,2 etc and a new plant is shown.

Many historians see the end of the as being in 1291, when the port city of Acre was retaken from Crusaders by Islamic armies. The Crusaders had failed to reclaim the as they had intended. The Crusades had been violent and bloody, causing the deaths of tens of thousands of people on both sides of the conflict.

Islamic armies had successfully defended the Holy Land from the Crusaders, and they went on to have military conquests of their own throughout the Middle Ages. In 1453, Islamic armies of the captured Constantinople from the Christian 聽and by 1529 had also conquered south-eastern Europe, including Hungary, and were besieging Vienna.

Many aspects of Western life have been impacted by the Crusades. Here are some examples:

WarfareThe Crusaders learned more about warfare. Concentric castles - with two curtain (outer) walls - were developed during the crusades, and these ideas were used to improve and fortify castles back in Europe. Islamic armies had used gunpowder as an effective weapon when successfully retaking Acre from the Crusaders in 1291.
MedicineDue to the number of injuries that doctors were treating, new medical discoveries were made. Hugh of Lucca served with the Italian army on a Crusade. He discovered that wine worked well as an antiseptic for cleaning wounds.
Exchange of ideasThere were times when Crusaders and Muslims showed mutual respect for each other and there is evidence that they shared ideas. Some Crusaders stayed in the Islamic states they travelled to, and this allowed an exchange of knowledge and ideas. Muslim scholars taught European scholars many things about science and medicine.
LiteratureMany Arabic books, containing ideas about medicine, science and technology, were brought back to European countries and translated into Latin. This meant they could be read by, and educate, people in the west.
TradeTrade increased, while Europeans also brought back knowledge about plants, irrigation and the breeding of animals.
New goodsWestern Europeans brought back many goods, such as lemons, apricots, sugar, silk and cotton and spices used in cooking.

How did Muslim scholars influence the European number system?

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The role of military orders

During the , groups of knights were put together to protect pilgrims and defend the . When joining a military order, knights took a vow saying they would live in poverty, chastity and obedience to the Church.

The duties of a Crusader varied slightly according to their role or the Crusade they went on, but often included: fighting to try and win control of the Holy Land for , making a 聽 to holy sites associated with the life of Jesus, protecting Christian communities and 聽, and behaving in a 聽 way.

These were some of the main military orders involved in the Crusades:

The Knights Templar

  • Founded in 1118, the Templar was based in Jerusalem.
  • Templar knights were known for their bravery and military skills. However, non-military members made up about 90 per cent of the order.
  • They managed financial affairs across many Christian countries.
  • Their methods and systems are the basis of how banking works today.
  • In modern culture, the Knights Templar have been included in many books and films.

The Knights Hospitaller

  • Given Papal blessing in 1113 by Pope Paschal II, the Knights Hospitaller was created to look after sick or injured pilgrims to the Holy Land.
  • The 聽of the order was St John, who Christians believe baptised Jesus Christ.
  • It is the order on which St John Ambulance is based, which still provides care for people in Britain today.

Teutonic Knights

  • The Teutonic Order was founded in 1190.
  • The order supported pilgrims on their journey to the Holy Land
  • It set up hospitals to treat sick and injured pilgrims and Crusaders.
A crusading knight is shown wearing chainmail, helmet, sword and shield. On his grey tunic there is a red cross.
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Taxes and political problems in England

An engraving of King Richard I

The were expensive and led to higher taxes at home.

A form of tax called the 鈥楽aladin tithe鈥 was introduced in 1188 to pay for the efforts of Crusaders to reclaim Jerusalem. Also, in 1192, when travelling home from the , Richard I was imprisoned and held for ransom by Leopold V of Austria and Henry VI, the Holy Roman Emperor - two Christian rulers. A tax was raised to collect the money required for his ransom.

In the time when Richard I was held captive, his brother John tried to take the throne from him. He was unsuccessful. The relationship between the two brothers eventually improved when Richard returned to England.

An engraving of King Richard I
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What were relations like between the two sides during the Crusades?

In 1187, Crusaders led by Richard I had captured around 3,000 Muslim prisoners. Negotiators couldn鈥檛 find agreement over the terms for their release between Saladin and Richard. Baha-Ed-Din, who was a Muslim scholar in the twelfth century, wrote in his biography of Saladin that the majority of the prisoners were publicly killed.

In 1191, Richard I and Saladin wrote to each other, attempting to negotiate a settlement. Saladin鈥檚 letter to Richard is useful in showing the importance of Jerusalem to Muslims and why they were so determined to defend it against Crusaders.

Though they were fighting over the , there was a degree of mutual respect between Muslims and Christians. Saladin and Richard I wrote to each other in an attempt to reach a peaceful settlement over the following the third Crusade. Richard wrote to Saladin, explaining the importance of the Holy Land to Christians.

What did Richard say in his letter to Saladin?

A simple illustration of a writer's quill

How did Saladin reply to Richard?

A simple illustration of a writer's quill

Despite the conflict and bloodshed of the , there were times when the two sides shared ideas and worked together. For example, in 1187, the Treaty of Ramla was signed. This established a 10 year peace agreement and allowed the free movement of Christian and Muslim 聽 to travel to and from Jerusalem.

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