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MEASURING TIME.

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Presentation on theme: "MEASURING TIME."— Presentation transcript:

1 MEASURING TIME

2 - Humans used stones as tools.
PERIODS OF HISTORY Stone Age – the longest human age, probably began around 2.5 million years ago. - Humans used stones as tools.

3 PERIODS OF HISTORY Bronze age – started around 5,000 years ago. People were living in Mesopotamia (now Iraq). - Humans discovered how to make bronze tools, from a combination of copper and tin.

4 Iron age – People in Asia Minor (now Turkey) discovered iron.
PERIODS OF HISTORY Iron age – People in Asia Minor (now Turkey) discovered iron. - We are dependent on iron today.

5 Middle Age – came between 476 C.E. and 1500 C.E.
PERIODS OF HISTORY Middle Age – came between 476 C.E. and 1500 C.E. The Renaissance was a period of growth in art and literature. It was during the Middle Ages.

6 Industrial Age – refers to the time around 1750 to the present.
PERIODS OF HISTORY Industrial Age – refers to the time around 1750 to the present. The steam engine, the assembly line, and modern transportation brought people from farms to cities.

7 Time Line - show how closely or how far apart time events happened.

8 “Crocodile Hunter” dies after being stung by poisonous stingray barb
TIME LINES Multiple tiers – helps you see two or more series of events that are related. America Celebrates Labor Day 9/4/06 “Crocodile Hunter” dies after being stung by poisonous stingray barb

9 Ages – the time that humans have spent on Earth
PERIODS OF HISTORY Eons – billions of years long. Eras – eons are divided into. Periods – eras are divided into. Epoch – the smallest division of geological time. Ages – the time that humans have spent on Earth

10 CENTURIES & MILLENIA Chronological Order – Placing events in order when they happened. Using this system, an event that happened in 1802 would come before and event that happened in 1902.

11 Century – 100 year span between the years ex: 1700’s, 1800’s, 1900’s
CENTURIES & MILLENIA Century – 100 year span between the years ex: 1700’s, 1800’s, 1900’s Millenia – 1000 year span between the years ex: 0 – 1000,

12 Decade – 10 year span between the years ex: 1980’s, 1990’s, 2000’s
CENTURIES & MILLENIA Decade – 10 year span between the years ex: 1980’s, 1990’s, 2000’s Year – 1 year span or days or the time it takes the Earth to orbit the sun ex: 2009, 2010, 2011

13 CENTURIES & MILLENIA Era – A period of time marked by a special event or leader. An era is not set by a number of years. Ex: The Civil War era (The time that the Americans were engaged in the Civil War.)

14 CENTURIES & MILLENIA The designations BCE and CE are simply a different way to write the traditional BC and AD.

15 CENTURIES & MILLENIA - The basis of our modern calendar was developed by Christian monks in the Middle Ages who decided to begin numbering years with the birth of Christ, and designate that year "0“.

16 CENTURIES & MILLENIA - Years following year 0 were designated AD, for the Latin Anno Domini, "in the year of the Lord." Years counting backward before year 0 came to be designated BC, before Christ.

17 CENTURIES & MILLENIA The designations BCE, Before the Common Era, and CE, the Common Era, were adopted in order to retain a long established way of counting years.

18 CENTURIES & MILLENIA BC = BCE AD = CE

19 RELATIONSHIPS BETWEEN EVENTS Cause and Effect - An earlier event causes another event to occur, and we can say that the later event is one of the effects of the earlier event.

20 PRE- HISTORY

21 Theories of Human Existence Creation Theory – Comes from the Old Testament and says that God created the Earth in seven days, putting all forms of life on the planet.

22 Theories of Human Existence Big Bang Theory – There was a big explosion out in space, and the Earth is merely a fragment of that explosion.

23 Theories of Human Existence Dust to Planet Theory – Minute dust particles out in space slowly joined together until eventually Earth was formed.

24 Theories of Human Existence Evolution Theory – Humans have changed physically and mentally over time.

25 - People used stones as tools and weapons.
The Stone Age - People used stones as tools and weapons. Paleolithic Era – “Old Stone Age”, 2 million years ago to 8500 BCE.

26 Neanderthals – early humans that lived around 150,000 years ago.
The Stone Age Hunter- gatherers – early humans that hunted for food or gathered it where it grew wild. Neanderthals – early humans that lived around 150,000 years ago.

27

28 Culture – beliefs, attitudes, art, customs, and traditions.
The Stone Age Culture – beliefs, attitudes, art, customs, and traditions. Mesolithic Era – “Middle Stone Age”, 8500 BCE to 8000 BCE. Neolithic Era – “New Stone Age”, 8000 BCE to 3000 BCE.

29 Paleolithic Era - Humans developed the earliest known tools. - Survived on plants and scavenged meat. - Learned to control fire. Developed more complex chopper tools. (hand ax)

30 - Rising sea levels and a changing environment.
Mesolithic Era - Rising sea levels and a changing environment. - Hunting became more efficient due to tools. - Dogs were domesticated into hunting partners.

31 - Agriculture (farming) was adopted.
Neolithic Era - Agriculture (farming) was adopted. - Pottery became a way to make new tools. - Large settlements (cities) began to shape.

32 The Agricultural Revolution
- Began around 9000 BCE in the region called the Fertile Crescent or Mesopotamia. - Climate was long dry season with short periods of rain, which was suitable for small plants like wheat and barley.

33 FERTILE CRESCENT

34 The Agricultural Revolution
Division of Labor – people did different jobs to serve the different needs of their community. - The separation of total work required to produce a good or service into individual interrelated tasks.

35 The Agricultural Revolution
- Domestication of animals became important during this period of time. - The animals' size, temperament, diet, mating patterns, and life span were factors in the desire and success in domesticating animals.

36 The Agricultural Revolution
- Animals that provided milk, such as cows and goats, offered a source of protein that was renewable and therefore quite valuable. -The animal’s ability as a worker (plowing), as well as a food source, also had to be taken into account.

37 The Agricultural Revolution
- Besides being a direct source of food, certain animals could provide leather, wool, hides, and fertilizer. - Some of the earliest domesticated animals included sheep, goats, cows, pigs, and dogs.

38 Learning about the Past
Oral History – History passed on by word of mouth. This is how history survived when there was no system of writing.

39 Learning about the Past
Artifacts – Objects made by people in the past. It could be an ancient Greek vase or something as simple as a pile of bricks.

40 Learning about the Past
Sources – Anything that provides information or evidence about the past. - Historians (people who study the past) use different kinds of sources to study what they want to know.

41 Learning about the Past
Primary Sources – Any artifact that was created at that time. Handwritten books Photographs Songs Carvings in rocks

42 Learning about the Past
Secondary Sources – Was created later than the time in history. History book (or textbook) Biographies Articles Essay

43 Learning about the Past
Archaeologists – People who study the remains of past cultures. Excavate – When Archaeologists dig up a historical site.


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