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Religious zeal motivated the knights who participated in the four Crusades. Adventure, the chance to win land and a title, and the Church’s promise of wholesale forgiveness of sins also motivated many. The Crusaders, mostly French knights, retook Jerusalem in June 1099 amid horrific slaughter. A French writer who accompanied them recorded this eyewitness account: “On the top of Solomon’s Temple, to which they had climbed in fleeing, many were shot to death with arrows and cast down headlong from the roof. Within this Temple, about ten thousand were beheaded. If you had been there, your feet would have been stained up to the ankles with the blood of the slain. What more shall I tell? Not one of them was allowed to live. They did not spare the women and children.” A Muslim eyewitness also described how the conquerors stripped the temple of its wealth and looted private homes.

In 1187, under the legendary leader Saladin, Muslim forces took back the city. Reaction from Europe was swift as King Richard I of England, the Lionheart, joined others to mount yet another action. The battle for the Holy Lands did not conclude until the Crusaders lost their Mediterranean stronghold at Acre (in present-day Israel) in 1291 and the last of the Christians left the area a few years later.

The Crusades had lasting effects, both positive and negative. On the negative side, the wide-scale persecution of Jews began. Christians classed them with the infidel Muslims and labeled them “the killers of Christ.” In the coming centuries, kings either expelled Jews from their kingdoms or forced them to pay heavy tributes for the privilege of remaining. Muslim-Christian hatred also festered, and intolerance grew.

On the positive side, maritime trade between East and West expanded. As Crusaders experienced the feel of silk, the taste of spices, and the utility of porcelain, desire for these products created new markets for merchants. In particular, the Adriatic port city of Venice prospered enormously from trade with Islamic merchants. Merchants’ ships brought Europeans valuable goods, traveling between the port cities of western Europe and the East from the tenth century on, along routes collectively labeled the Silk Road. From the days of the early adventurer Marco Polo, Venetian sailors had traveled to ports on the Black Sea and established their own colonies along the Mediterranean Coast. However, transporting goods along the old Silk Road was costly, slow, and unprofitable. Muslim middlemen collected taxes as the goods changed hands. Robbers waited to ambush the treasure-laden caravans. A direct water route to the East, cutting out the land portion of the trip, had to be found. As well as seeking a water passage to the wealthy cities in the East, sailors wanted to find a route to the exotic and wealthy Spice Islands in modern-day Indonesia, whose location was kept secret by Muslim rulers. Longtime rivals of Venice, the merchants of Genoa and Florence also looked west.

The iberian peninsula

Although Norse explorers such as Leif Ericson, the son of Eric the Red who first settled Greenland, had reached and established a colony in northern Canada roughly five hundred years prior to Christopher Columbus’s voyage, it was explorers sailing for Portugal and Spain who traversed the Atlantic throughout the fifteenth century and ushered in an unprecedented age of exploration and permanent contact with North America.

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, U.s. history. OpenStax CNX. Jan 12, 2015 Download for free at http://legacy.cnx.org/content/col11740/1.3
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