# data[].attributes.headline
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.subject
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.body
With the developments of tools of bones and stones to perform hunting, began the carved stone technology.

# data[].attributes.headline
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.subject
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.body
The power and control over the fire transformed the way of life of people since it offered protection and light.

# data[].attributes.headline
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.subject
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.body
Humans developed agriculture and animal farming that promoted the production of tools for their care resulting in the appearance of the first definitive human settlements.

# data[].attributes.headline
Prehistory (2.5 million years ago - 1200 B.C) 

# data[].attributes.subject
Prehistory (2.5 million years ago - 1200 B.C) 

# data[].attributes.body
The first houses were built. The development of the first buildings of stone and timber would give way to the use of mud and clay bricks.

# data[].attributes.headline
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.subject
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.body
The domestication technology made it possible to obtain more products derived from the animls for their consumption and to keep them for longer.

# data[].attributes.headline
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.subject
Prehistory (2.5 million years ago - 1200 B.C)

# data[].attributes.body
As a result of division of tasks, the first social inequalities began to take place.

# data[].attributes.body
The old villages were transformed into big cities with architectural constructions, improvements in agriculture, and aqueducts.

# data[].attributes.body
The cities began to exchange products with each other, as well as knowledge, techniques, and technology.

# data[].attributes.body
The commercial routes aided the access of people to new resources and new technologies, especially related to war.

# data[].attributes.body
The specialization of work increased social inequalities, accentuated with the appearance of private property.

Roman society was divided into social classes:
Patricians: Considered the only "citizens".
Plebeians: Not considered citizens.
Slaves: Not considered as citizens, not even as people.

# data[].attributes.body
In the societies where slavery existed, productivity was solved by the increase of slaves, so the development of tehnology decreased.

# data[].attributes.body
Started in Europe, where a lot of wars and epidemics were taking place, preventing technology’s development

# data[].attributes.body
Christianity spreads and takes over the political, social and economy order of Europe

# data[].attributes.body
Asia creates the printing press, the compass, the windmill, etc.

# data[].attributes.body
Chinese star using oil and gas, as well as developing things like the iron plow, gunpowder and the cannon

# data[].attributes.body
1450: One of the major developments of this period was the printing press, which was a great leap toward the propagation of knowledge.

In 1505, German locksmith Peter Henlein created what is regarded by many as the first watch.

In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun.

1590: Two Dutch spectacle-makers and father-and-son team, Hans and Zacharias Janssen, create the first microscope.

# data[].attributes.body
In 1609, Galileo constructed his own telescope.

In 1620, an English politician named Sir Francis Bacon developed a method for philosophers to use in weighing the truthfulness of knowledge.

1623 – Galileo publishes Il Saggiatore (The Assayer), credited as one of the first works detailing the scientific method.

In 1632, Galileo published a book that stated, among other things, that the heliocentric theory of Copernicus was correct.

# data[].attributes.body
In 1661, In The Skeptical Chymist (1661) Boyle argued against Aristotle's view of the four elements of earth, air, fire and water.

In 1662, Robert Boyle published what would later be known as the Boyle Law.  This law expresses the inverse relationship that exists between the pressure and volume of a gas.

In 1687, Isaac Newton published his work Mathematical Principles of Natural Philosophy, where a comprehensive theory of gravity was exposed, as well as his three laws of motion.

# data[].attributes.body
17th century
Rationalism:
Rationalism considers reason as the source of knowledge. The first modern rationalist was René Descartes, who was sure that to obtain real knowledge, it was necessary to establish a rational method based on doubt.

Empiricism:
The doctrine of empiricism was first explicitly formulated by John Locke in the 17th century. Locke argued that the mind is a tabula rasa ("clean slate" or "blank tablet") on which experiences leave their marks.

# data[].attributes.body
1781: Immanuel Kant agreed with Bacon, but also added the idea that human knowledge is only possible through the interaction between experience and reason.

1845: Marx and Engels first set out their materialist conception of history in The German Ideology.

# data[].attributes.body
1885: Marx wrote The Eighteenth Brumaire to explain how and why the revolution of 1848 in France had led to Louis Bonaparte's coup d'état in 1851.

On 7 March 1876, Bell was granted US patent 174465A, for a method of transmitting speech by telegraphy—the telephone.

On January 29, 1886, Carl Benz applied for a patent for his “vehicle powered by a gas engine.” The patent – number 37435 – may be regarded as the birth certificate of the automobile.

# data[].attributes.body
On December 17, 1903, Wilbur and Orville Wright made four brief flights at Kitty Hawk with their first powered aircraft. The Wright brothers had invented the first successful airplane.

# data[].attributes.body
During this period, there is an improvement in business management, health, education, and social services in nations, accompanied by scientific and technological progresses.

# data[].attributes.body
Albert Einstein publishes his theory of relativity and explains the photoelectric effect.

# data[].attributes.body
1907: Belgian chemist and clever marketeer Leo Baekeland pioneered the first fully synthetic plastic in 1907.

# data[].attributes.body
1911: Taylorism became the new norm for the organization of work. It involves isolating workers from each other and assigning them an specific function and task to optimize work as much as possible, but due to each worker doing the same specific work each time the repetition gradually led to lack of focus and worse quality of work. The Industrial Revolution came and brought a new system of production called capitalism, worsening the conditions of the worker even more, making them sell their labor for lower wages and more working hours, many workers were upset by the conditions and were motivated to make union movements to stand for themselves and to get a better deal.

# data[].attributes.body
Niels Bohr presents his atomic model.

# data[].attributes.body
First World War begins after the assassination of Franz Ferdinand.

# data[].attributes.body
First World War ends.

# data[].attributes.headline
XX and XXI Centuries (September 1st, 1939)

# data[].attributes.subject
XX and XXI Centuries (September 1st, 1939)

# data[].attributes.body
Second World War starts when the Nazi Germany invaded Poland.

# data[].attributes.body
Second World War ends.

# data[].attributes.body
Discovery of the double helix structure of DNA by Francis Crick and James Watson.

# data[].attributes.body
On October 4th, the Soviet Union launches Sputnik 1.

# data[].attributes.body
Dolly the sheep is cloned.

# data[].attributes.body
First draft of the human genome is completed.

# data[].attributes.body
The existence of water on Mars is confirmed by the NASA.