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A.d. 1001 to 1100

Backward to A.D. 901 to 1000

In the time of the European Middle Ages urban sites and countryside were intimately connected. A town of 3,000 people required the produce of some 10 villages and 8.5 square kilometers of surrounding land to survive. Long distance trade was available only to a few exceptional cities, such as Mecca, Istanbul, Florence, Venice, Naples, Rome, Bruges, Delhi and Peking. The real leader of the world, beginning in this century and lasting for about 400 years, if the Europeans had but known it, was China, where remarkable achievements in industry and armaments occurred. (Ref. 260 , 279 )

The christian church

The reforms initiated by the Cluniac monasteries spread quickly and reached Rome when Emperor Henry III started a papal reform at the Synod of Sutri, in 1046. The actual church administration reform began under Pope Leo IX in 1049 and was continued by Gregory VII, called Hildebrand, one of the strongest pontifs in history who, himself, had been a monk of Cluny. His reforms included attacks on simony (the sale of ecclesiastical offices) and lay investiture (the right of kings to appoint bishops, etc.). He tried to give spiritual unity to the western church without interfering in secular rule, but his doctrines led to a life and death struggle with the empire and in the end he too turned to militarism via alliances with the Normans, who had conquered southern Italy and Sicily. The Great Schism (the final splitting of the Greek Orthodox and Latin Catholic churches) occurred in 1054 over a point of theology.

In previous years Christian pilgrims had traveled to the holy places in the Middle East unmolested by the Arabs, but at the beginning of this 11th century the "Mad Caliph" Hakim began to prey upon these travelers and profane the Holy Sepulchre. At the end of the century Emperor Alexius I of Byzantine appealed to the western princes for help when he was again threatened by the Moslems. Thus, in 1095 the 1st Crusade was summoned by Pope Urban. The first ill-organized wave of crusaders sacked Hungary and the Balkans en route to the east and were, in turn, massacred by the Turks when they did arrive in Asia Minor. Antioch did fall to Bohemund of Otranto after a 9 month siege but he lost 5,000 of his 7,000 horses to hunger and disease and so many men died so quickly that it was not possible to bury all of them and the bodies contaminated cisterns and aqueducts, aggravating the epidemic. In 1099 a final wave of crusaders finally did reach Jerusalem where the Moslems remaining in the city were slaughtered, but the particular Turks that they had come to fight had already been run out by the Fatimids of Egypt a year previously. (Ref. 8 , 49 , 42 , 222 ) (See map on page 603)

Causes of the crusades

  • The continuous advance of the Seljuq Turks
  • The dangerous weakening of the Byzantium Empire, tempting conquest by the Turks
  • The ambition of Italian cities such as Venice, Genoa, Pisa and Amalfi to extend their commercial power and the ambition of adventurous princes
  • The agricultural revolution north of the Alps, which meant more people - a population explosion of healthy, energetic people, with a natural impulse to travel and go for adventure
  • Envy for the riches and luxury of the East. (Ref. 49 , 211 , 42 )

The islamic church

A conflict between religion and science developed within Islam, with three separate groups of thinkers deviating from the orthodox concepts. These were:

  • Theists - accepting Allah and immortality, but denying creation and resurrection of the body
  • Diests - acknowledging a deity but rejecting immortality
  • Materialists - completely rejecting the idea of God

Al-Ghazali, the greatest Moslem theologian, fought against all these concepts and all orthodoxy took comfort from him. Even some Christian theologians were glad to find such an exposition of piety. He was so dominant that after this, with very few exceptions, philosophy was hidden, the pursuit of science waned and the mind of Islam more and more buried itself in the Hadith and the Koran. Al-Ghazali became a Sufi, a mystic, and with a radical distrust of human reason he changed the course of Islam to a more personal religion. (Ref. 49 )

International jewry

Jewry flowered in Moslem Spain in the first half of the century but persecution returned later. About the same situation occurred in France, with Jews killed and/or confined to ghettos late in the century.

Forward to A.D. 1101 to 1200

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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
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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
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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
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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, A comprehensive outline of world history. OpenStax CNX. Nov 30, 2009 Download for free at http://cnx.org/content/col10595/1.3
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