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America

Back to America: A.D. 201 to 300

North america

The far north and canada

Please see previous chapters, particularly the 6th , 4th and 1st centuries B.C. and the 3rd century C.E. , as well as The Pacific: A.D. 301 to 400 .

The united states

It is apparent that Indian people inhabited most of the American continent throughout all these early Christian centuries. Most American chiefdoms were agricultural (Hopewell, Mogollon, Hohokam and Anasazi) but along the northwest coast there were unusually rich fishing grounds with whales and seals which supported large villages and a complex ceremonial life. In the southwest it was near the end of the Early Basket Maker period of the Anasazi. In their excavated graves, along with the baskets have been found skeletal remains of these ancient people, buried dressed in string aprons and loin cloths made of hair, furs and feathers. No clay vessels or fired pottery have been found. (Ref. 8 , 210 )

Mexico, central america, and the caribbean

At this time, the beginning of the Classic Period in Middle America, Teotihuacán had become the largest of the ancient Mexican empires, extending from the Valley of Mexico to Guatemala. In addition a new empire of the Mayas appeared in Yucatan, with paved roads extending throughout the realm. Although the city was ancient, there were now probably 1,000 people living around Cuella, in northern Belize. A twelve foot high platform, spread over more than an acre, has been dated to this 4th century in that place. Increasingly taller pyramids elevated temples as high as 30 feet above the ground. Norman Hammond (Ref. 263 ) who has recently excavated many archaeological layers at Cuello, says that he has demonstrated an independent Maya cultural tradition there at least 4,000 years old, and he believes that this area was the mainspring of Maya civilization - not highland Mexico or highland Central America, as some have claimed. The entire Mayan Culture was marked by a distinctive art style, the use of the corbelled vault and advanced mathematical concepts, including the use of zero, a complex calendar and the New World's most advanced writing system. (See also America: 300 to 201 B.C. , America: 0 to A.D. 100 and America: A.D. 101 to 200 ). Mayan astronomers calculated the exact length of the solar year, the lunar month, the revolution of planet Venus and were able to predict eclipses. For the latter they used monuments similar in function to Stonehenge in England. Their sister civilization in Peten also continued on a high level and the skilled Huastec builders of El Tajun at Veracruz diverted fresh-water canals to fertile terraces between tidal rivers and brackish estuaries. This civilization flourished for 800 to 900 years. (Ref. 8 , 39 , 236 )

South america

More information about the interesting Moche Culture of Peru is warranted at this time, even though they may have lived at a much earlier period, and the accomplishments we shall mention now may be confused with the later Chan Chan Society. A history of their race and customs seems to have been left in their ceramic art. Portrait ceramics show the round face, high cheekbones and hooked nose, with flaring nostrils. The figures frequently depict vivid movement. Their landscapes had unusual detail and their goldwork emphasized mosaics of turquoise encrusted on gold. Using silver and copper in smelting techniques, they had the "lost-wax" method of casting and their own forms of welding, soldering, hammering, gilding and repousse. Although their origin and date of appearance is highly debated, the society apparently existed for about 1,000 years.

In the high country of the Peruvian-Bolivian border, the Tiahuanaco civilization persisted. In the south the Nazcas may have had a close relationship with the Paracas, and a place known as Necropolis may have been used as a cemetery for chiefs and priests of both tribes. More than four hundred mummies, all wrapped in shrouds and elaborate cloaks have been found there in a building under the sands. Some of the embroidery designs show strange, masked people who appear to be descending from above with the help of many ribbons, the significance of which remains unknown. (Ref. 10 , 176 )

Foward to America: A.D. 401 to 500

    Choose different region

  • Intro to Era
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  • Central and Northern Asia
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  • The Near East
  • Pacific

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, 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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