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Africa

Back to Africa: 500 to 401 B.C.

Northeast africa

Kush continued its prosperity with extensive trade routes. The ruins of both Napata and Meroe still stand today and there are the remains of pyramids like those of Egypt but also Hellenistic pillars, Arabian arches and even hieroglyphs with Hindu-like symbols, all suggesting a cosmopolitan atmosphere. Axum continued to exist still farther south. (Ref. 175 )

The Egyptians revolted successfully against the Persians under the 28th, 29th and 30th dynasties, but late in the century, as we shall see, the Macedonian-Greek Alexander took over the old Persian territories, including Egypt. The city of Alexandria was founded just before Alexander's death in about 323 B.C. and there was soon accumulated there a great research library containing perhaps 400,000 manuscripts in literature, mathematics, astronomy and medicine. Later, as Alexander's empire was divided, the Macedonian general, Ptolemy, took over Egypt and helped make it into a great commercial nation.

North central and northwest africa

A portion of what is now Libya went with Egypt as part of the Persian Empire and then later Alexander's. Otherwise the chief point of interest was Carthage which in- creased in population and power and participated in intermittent wars with Sicily. Between 310 and 306 B.C. the navies of Carthage and the Sicilian Greeks were in a terrible conflict with the Carthaginians gathering a great invasion force of about 1,500 vessels. In so doing, however, they had to leave the gates of Hercules unguarded, thus making it possible for the first time in some years for the ships of other Mediterranean nations to reach the Atlantic. (See WESTERN EUROPE, this chapter). To pay their soldiers, after conquering Sicily, the Carthaginians engaged the finest Sicilian Greek artists to make dies for casting new Sicilian-Carthaginian coins, and these were soon circulating wherever the north Africans had business dealings.

In the post-Alexander period at the end of the century the Libyan Greeks of Cyrene became the major source of learned men at the court of the Ptolemies in Alexandria. Cyrene exported chiefly horses and silphium, an herb used in Roman cooking. (Ref. 66 , 211 )

Subsaharan africa

By 300 B.C. permanent settlement in the Tichit Valley in the southwest Sahara had ended because of desiccation. The Sudanese Negroes, stretching across the continent just south of the Sahara now had iron technology and with greater population, better agricultural methods and possibly greater social cohesion, they were able to expand southward throughout Africa at the expense of indigenous inhabitants whom they conquered, absorbed or displaced. In the early centuries they confined themselves to the drier regions where their cereals could grow. These were the people known in the east and south as "Bantu", although actually the name refers to their language, rather than to any particular tribe. (Ref. 68 , 45 )

Forward to Africa: 300 to 201 B.C.

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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
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, A comprehensive outline of world history (organized by region). OpenStax CNX. Nov 23, 2009 Download for free at http://cnx.org/content/col10597/1.2
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