MEASURING HISTORY Content Standards I understand the chronological order of history prehistory to...
-
Upload
sheena-oneal -
Category
Documents
-
view
220 -
download
3
Transcript of MEASURING HISTORY Content Standards I understand the chronological order of history prehistory to...
MEASURING HISTORY
Content Standards
• I understand the chronological order of history prehistory to modern day
Essential Question:
• What are the key components of civilization?
THE STORY
The world is roughly 4.5 to 6 billion years old –
we’re are going to round that to 5,280,000,000
Scientists believe the earliest humans branched off
from chimpanzees around 5 to 7 million years ago
Hominids “Lucy” 2.3 to 2.4 millions years ago
First Homo Sapiens 400,000 to 500,000 years ago
THE MATH FOR MEASURING HISTORY
Let’s assume that the world is 5.280 billion years old.
(5,280,000,000)
1 foot =1 million years (1,000,000)
To make the math easier, drop the zeroso 5,280,000,000o 1,000,000
5,280 ft
5280 ft = 1 mile
LETS GET STARTED
The first simple cell organisms developed around 3.8 billion
years ago. Dinosaurs developed around 230 million years ago.
How many feet are there between the time of the first simple
organisms and the dinosaurs?
3,800,000,000
230,000,000
3,570 feet
THE DINOSAURS
Dinosaurs roomed around from about 230 million years ago
until about 65 million years ago. How many feet would
Dinosaurs represent in the planets history?
230,000,000
65,000,000
165 feet
“LUCY” HOMINIDS
"Lucy" is estimated to be around 3.2 million years old, so lets
assume that is roughly around the time the first humanish
creatures developed. How many feet has it been since Lucy's
time?
3,200,000
3.2 feet
FIRST MODERN HUMANS
The first Homo Sapiens developed in Africa around 200,000
years ago. How many feet do modern humans represent in the
timeline of the planet?
200,000/1,000,000=.2
.02 inches
THE MODERN ERA
The Renaissance, which began around 1350, is often considered the
beginning of the "modern era". How many feet of Earth's history
belong to the modern era?
2011
1350
661years
661/1,000,000=0.0007 feet
.0007/12=0.0001
WRAPPING IT ALL UP
To wrap this all up, the history that matters most
to most of you is measured in a .00006 inches.