If we take the 4.6 billion year history of the earth as one year...

Earth, Our Home
How was Earth born? Where did people come from?
Let’s take a trip. We’ll use a 365-day per year calendar.

January 1 (4,600,000,000 years ago)
First day of the year
When Earth was formed, collisions of asteroids covered the Earth’s surface with a sea of magma

January 8 (4,500,000,000 years ago)
Birth of the Moon, a result of a collision between the primitive Earth and a planet-sized body named Theia.

January 24 (4,300,000,000 years ago)
Primordial ocean begins forming

February 17 (4,000,000,000 years ago)
First life forms (Prokaryotes) appear

March 29 (3,500,000,000 years ago)
Beginning of photosynthesis caused by cyanobacteria

May 5 (2,900,000,000 years ago)
Children’s Day

June 16–July 26 (2,500,000,000 to 2,000,000,000 years ago)
Increase of oxygen

July 2 (2,300,000,000 years ago)
Earth is largely covered with ice (Snowball Earth)

July 26 (2,000,000,000 years ago)
Appearance of Eukaryotes

August 3 (1,900,000,000 years ago)
Formation of the Nena supercontinent

About September 23 (1,200,000,000 years ago)
Autumnal Equinox Day

October 13–November 14 (1,000,000,000 to 600,000,000 years ago)
Appearance of multicellular animals

November 6 (700,000,000 years ago)
Earth is largely covered with ice (Snowball Earth)

November 10 (650,000,000 years ago)
Earth is largely covered with ice (Snowball Earth)

November 14 (600,000,000 years ago)
Appearance of Ediacara fauna

November 19 (540,000,000 years ago)
Cambrian explosion

November 19 (540,000,000 years ago)
Appearance of corals

November 22 (500,000,000 years ago)
Appearance of vertebrate animals
Development of shells, bones and teeth

November 26 (475,000,000 years ago)
Plants take root on land

November 27 (440,000,000 years ago)
(First) Mass extinction of life

November 28 (420,000,000 years ago)
Appearance of Euonychophora (life forms closely related to arthropods)

November 29 (416,000,000 years ago)
Evolution of fish

November 30 (400,000,000 years ago)
Animals take up life on land

December 2 (370,000,000 years ago)
(Second) Mass extinction of life

December 3 (360,000,000 years ago)
Fern forests

December 4 (350,000,000 years ago)
Appearance of dragonflies

December 8 (300,000,000 years ago)
Emergence of Synapsids (ancestors of mammals)

December 12 (252,000,000 years ago)
Eruption of flood basalt creating the Siberia Traps

December 12 (250,000,000 years ago)
Approximately 90% of life forms on Earth go extinct (greatest recorded mass extinction)
(Third) Mass extinction of life

Formation of the Pangea supercontinent

December 15 (210,000,000 years ago)
(Fourth) Mass extinction of life

December 16 (200,000,000 years ago)
Dinosaurs thrive

December 19 (160,000,000 years ago)
Appearance of flowering plants

December 20 (150,000,000 years ago)
Appearance of creatures resembling honeybees

About December 25 (100,000,000 years ago)

December 26 (65,500,000 years ago)
Asteroid collides with Earth on the Yucatán Peninsula in Mexico
Flooding of the Deccan Plateau, Eruption of basalt; extinction of dinosaurs

(Fifth) Mass extinction of life

December 26 (65,000,000 years ago)
The Age of Giant Birds

December 27 (60,000,000 years ago)
Increase in size of mammals

December 28 (50,000,000 years ago)
Ancestors of whales return to the sea

December 28 (40,000,000 years ago)
The Indian Plate collides with the continent of Asia, beginning the formation of the Himalayan Range

December 30 (25,000,000 years ago)
The Eurasian continent begins splitting at its eastern edge, with the early form of the Japanese archipelago taking shape

December 31 12:00 A.M. (about 12,000,000 years ago)
The last day of the year

December 31 10:40 A.M. (7,000,000 years ago)
Beginning of bipedal motion, and appearance of hominids

December 31 6:17 P.M. (3,000,000 years ago)
Australopithecus begins using primitive stone tools

December 31 11:37 P.M. (200,000 years ago)
Appearance of modern hominids (Homo sapiens)

December 31 11:51 P.M. (75,000 years ago)
Catastrophic eruption of Toba volcano (Indonesia)

December 31 11:58 P.M. (10,000 years ago)
Beginnings of agriculture and pastoralism

December 31 11:59 P.M. (200 years ago)
Industrial Revolution

January 1 (Present)
The New Year