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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

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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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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