1. World War I
   World War II
2. Civil War
   Cold War

World War I was a huge war fought between Germany and its allies, and other European countries and their allies. Sadly, World War I wasn’t the “War To End All Wars.”

1. Ink
   Printing press
2. Paper
   Pencil

Johannes Gutenberg was the German publisher and blacksmith who invented the movable type. It was a crucial component of the printing press he presented to the world, making mass publishing way easier and cheaper.

1. Moses
   David and Goliath
2. John The Baptist
   Jesus Christ

Jesus Christ was born around 5 BC, as what historians noted. He was born in Bethlehem.

1. Mount St. Helens explosion
   War of the worlds
2. Declaration of Independence
   Plymouth Rock landing

It was in July 4, 1776 when the Declaration of Independence made Americans assert that they no longer wished to be under British rule. Thomas Jefferson led the drafting of this important document, along with the other "founding fathers."

1. Cold War
   World War II
2. Korean War
   Vietnam War

World War II wasn't merely an event in Europe. It spread to other regions as well, notably Asia.

1. The car
   The telephone
2. The train
   Electricity

Karl Benz was the German engineer who invented the first practical car model humankind could drive. He patented it in 1886.

1. Muhammad
   Confucius
2. Siddharta Gautama
   Reverend Al Jolson

The birth of the central figures of today’s major world religions are important to take note. For Muhammad, followers of Islam revere his birth date in 570 AD.

1. 8/11
   9/11
2. 7/11
   1/11

The 9/11 attacks of 2001 became a significant marker in the world’s history, since it marked a global event for the fight against world terrorists.

1. Man kills the sun
   Man lands on the moon
2. Man thrashes the earth
   Man ends life

The Apollo 11 American space mission put a human being on the moon for the first time. Astronaut Neil Armstrong uttered that famous line.

1. United Nations
   La Travia
2. International Labor Organization
   World Health Organization

The United Nations is an international formation wherein member states join together in harmony. It was formed as a result of World War II, as a hope to prevent future worldly catastrophes of the same nature again.

1. The boat
   The road
2. The gunpowder
   The wheel

The invention of the wheel happened back in Mesopotamia. It was the same time that the plow was also invented. Both inventions revolutionized agricultural industries back then.

1. Prisoners
   Slaves
2. Children
   Women

Slavery was abolished when Abraham Lincoln signed the Emancipation Proclamation in 1863. It was indeed a victorious date for humankind's humanity.

1. DNA
   RBC
2. AZT
   PHD

It was in 1953 when James Watson and Francis Crick talked of building a model that stored the genetic information of human beings. That's the DNA they were talking about.

1. Berlin Wall
   Iron Curtain
2. Iron Butterfly
   Red Carpet

The Berlin Wall divided the German city in a political and ideological manner. But as communism collapsed in the late '80s, so did this wall.

1. Korean War
   Civil War
2. Vietnam War
   Cold War

The American Civil War was indeed a battle between the North and the South. Abraham Lincoln was the U.S. president when the war broke out.

1. 100 Meter Dash
   Marathon
2. Olympics
   Decathlon

The Olympics is a gathering of the world's best athletes for friendly competition. Sportsmanship is the name of the game here.

1. Cinema
   TV
2. Dance
   Music

The first commercial exhibition of a cinematic work happened in a Parisian cafe in 1895. Film historians regard this as the "official birth of cinema" in the world, like the cinema we now know.

1. The right to an abortion
   The right to vote
2. The right to marry a husband
   The right to life

The 19th Amendment in the U.S. was significant because it gave the women the right to finally vote. The Suffrage movement bore good fruits!

1. Sputnik
   Gagarin
2. Tereshkova
   Laika

The Sputnik satellite was put on orbit on October 1957. (No) thanks to this, the Cold War ensued later on.

1. Germany
   Italy
2. France
   Spain

The US went to war with the French in the War of 1812. Historians say this was part of the Napoleonic Wars.

1. Writing
   Shouting
2. Body movements
   Talking

Writing was invented back in 3200 BC. The urge to record and document life was very much alive, even for ancient human beings.

1. The Rabbit Hole
   The Boston Tea Party
2. The Great Depression
   The Roaring Twenties

Industrialization received a huge blow when western countries suffered during The Great Depression era. This huge economic slump was felt in the US and Europe, and in other industrialized nations as well.

1. Computer software
   Internet
2. Silicon chip
   Pedal

The silicon chip was invented in 1961. The credit goes to American electrical engineers Jack Kilby and Robert Noyce.

1. Apartheid
   Holocaust
2. Synchronicity
   Avalon

South Africa also had their brand of white supremacy upon the institutionalization of apartheid. But thank goodness that all came crumbling down in 1991.

1. Battle of Creekside
   Battle of Waterloo
2. Battle of Willoughby
   Battle of Watergate

The Battle of Waterloo actually took place in Belgium, since the place was under Nepoleon's reign at that time. It happened in 1815.

1. Modern alphabet
   Modern numbers
2. Modern calligraphy
   Modern talking

Modern alphabet's invention back in 1600 BC proved that human beings were cognitively skilled at creating a system for communication. That explains why we have so many language systems today, worldwide.

1. X-Day
   V-Day
2. D-Day
   N-Day

D-Day is commemorated on June 6, 1944. It was a huge Allied forces movement to thwart the Axis enemies.

1. Sports Glory
   Battle of the Sexes
2. Whip It Good
   Wham Bam

The huge 1973 tennis event called Battle of the Sexes pitted Billie Jean King against Bobby Riggs. But hey, the woman won!

1. Arthur Miller
   Ferdinand Lorca
2. Christopher Marlowe
   William Shakespeare

William Shakespeare was born in Stratford-Upon-Avon in England. He died in 1616, at age 52.

1. AIDS
   Pneumonia
2. Ebola
   SARS

AIDS was being studied by many scientists and doctors in different parts of the world already prior to the 1980s breakout. It wasn't long before they could pinpoint its cause -- the HIV virus.

1. Gravity
   Blackholes
2. Comets
   Meteor shower

The universal law on gravitation, or an explanation of how gravity basically works, was published by Sir Isaac Newton in his book. Its title was Philosophiæ Naturalis Principia Mathematic.a

1. Compass
   Royal sextant
2. North star
   Telescope

The early explorers would not have made it to the lands they discovered had it not been for the invention of the magnetic compass. You could say this is the ancient ancestor of today's GPS.

1. Horse carriage
   Letters
2. Telegraph
   Telepathy

The telegraph was an important innovation in human history. Without it, our modern day communication systems won't be possible!

1. Superman
   Wonder Woman
2. Spiderman
   Ironman

Superman became a hit for teens and adults alike. Its all-benevolent hero was a figure humankind sometimes needs.

1. Charles Darwin
   Gregor Mendel
2. Archimedes Front
   Galileo Galilee

Charles Darwin's publication was fully titled On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. It changed the way we saw our evolution, in light of the evolution of other beings.