CUATRO: Historically significant world event

CINCO: Three age system: stone age, bronze age, iron age 

1.      It is the classification of past into time periods Stone Age, Bronze Age, Iron Age

2.      This classification was espoused in the 19th century in order to chronologically arrange artifacts, incidents and relics of late prehistory and early history

3.      In 1788–1865 the director of the Royal Museum of Nordic Antiquities, Denmark C. J. Thomsen develop this

4.      As the periods are differentiated by the progress and advance of technology, the years to which these denote differ in various parts of the world

5.      In 2,500,000 BC Homo habilis was the first species of human evolving in Sub-Saharan Africa.

6.      Homo habilis created stone tools and thus began stone age

7.      The stone age had three subdivisions

a.       Old Stone Age / Paleolithic. 260,000 years ago saw the first known tool use at the end of the last Ice Age. Humans were hunter-gatherers; Spanned over ninety percent of human existence. Different species of Homo appeared and in 200,000 BC Homo sapiens evolved in Sub-Saharan Africa, the other species including the ones who migrated to Europe perished. Human showed primitive behavior. Most of the inhabitable world was colonized including the Americas via the Bering land bridge. This age can be divided into three parts:

Lower Paleolithic (260,000- 250,000 BC) - archaic human species, tools used were simple cores and flaked pieces

Middle Paleolithic (250,000- 30,000 BC)- archaic and modern human species existing together, tools had attaching points and handle like structure

Upper Paleolithic - worldwide growth of modern humans, extinction of archaic humans and admixture (Neanderthals) with modern humans, development of pictorial art, improved tool combined with bone, antler, and ivory

b.      Middle Stone Age / Mesolithic, Human was transitioning to agricultural life when the last glacial period ended and farming-conducive climate started.  Human showed behavioural modernity in the form of complex ideas and creativity giving rise to, religion, art, government and technology.

c.       New Stone Age / Neolithic (10,000 BC-0), Human fully transitioned to agriculture. Neolithic age began in 10,000 BC Mesopotamia, 7000 BC in Greece, 5000 BC in India; 3000 BC in Britain marked by urbanization, domestic-able plants and animals like goats, sheep, pigs and horses.  

8.      The Bronze Age: Use of bronze became very prominent with the development of extracting metal from ore. Use of copper gave rise to Chalcolithic or Copper Age. Copper was soft metal, combined with tin formed a harder alloy bronze probably first in Sumer. The bronze age lasted from 3000 to 1000 BC in Southwest Asia. By 2000 BC bronze age started in Eurasia but did not spread beyond Sahara Desert. In pre-colonial Americas, the bronze age reached only by the Inca. Humans developed the first writing systems and invented the wheel. Bronze Age saw the rise of large societies, states and kingdoms like Sumer and Babylonia, Athens. There was huge development in trade and warfare. Bronze age started in British Isle in 1900 BC and in China in 1700 BC

9.      In 1000 BC iron age started in Southwest Asia ca. 1000 BC with the production of very hot smelting pit to smelt iron ore as many Bronze Age civilizations, like Mycenaean and Hittite Empire collapsed. By 500 BC, iron age started in most of Eurasia. The iron age spread to North Africa, and also across sub-Saharan Africa by 1 BC. As iron was abundant mass-production of metal tools began revolutionizing agriculture and warfare. The Hittites probably first created harder alloy steel by combining iron with carbon in present day Turkey

SEIS: quiz

QUESTIONS

What is the difference between weight and mass?
What is the name of the most common isotope of hydrogen?

ANSWERS

Mass is the quantity of matter in an object and weight is the gravitational force acting on an object
Protium