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August 15,1096 The four main Crusader armies left Europe around the appointed time in August 1096. They took different paths to Constantinople and gathered outside the city walls between November 1096 and April 1097; Hugh of Vermandois arrived first, followed by Godfrey, Raymond, and Bohemond.

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772 AD, The beginning of the Reconquista is traditionally dated to the Battle of Covadonga (circa 718 or 722), in which an Asturian army achieved the first Christian victory over the forces of the Umayyad Caliphate since the beginning of the military invasion.

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November 1, 1478 it was not entirely unexpected. Follow the origins and evolution of the Spanish Inquisition. Spanish Inquisition, (1478–1834), judicial institution ostensibly established to combat heresy in Spain and in 1478 pope sixtus iv issued a papal bull, or decree, authorizing the catholics monarchs to name inquisitors in order to enforce religious uniformity and to expel jews from spain.

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The history of islam concerns the political, social, military and developments of the islamic civilization. most historians believe that islam originated with Muhammad's mission in mecca and medina at the start of 7th century CE although muslims regard this time as a return to the original faith passed down by the Abrahamic prophets, such as adam, noah, abraham, moses, david, solomon and jesus with the submission to the will of god.

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The Sykes–Picot Agreement was a 1916 secret treaty between the United Kingdom and France, with assent from the Russian Empire and the Kingdom of Italy, to define their mutually agreed spheres of influence and control in an eventual partition of the Ottoman Empire.

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On May 14, 1948 David Ben-Gurion, the head of the Jewish Agency, proclaimed the establishment of the State of Israel. U.S. President Harry S. Truman recognized the new nation on the same day.

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The apartheid system in South Africa was ended through a series of bilateral and multi-party negotiations between 1990 and 1993. Apartheid, the Afrikaans name given by the white-ruled South Africa's Nationalist Party in 1948 to the country's harsh, institutionalized system of racial segregation, came to an end in the early 1990s in a series of steps that led to the formation of a democratic government in 1994.

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1941,The Holocaust was the genocide of European Jews during World War II. Between 1941 and 1945, Nazi Germany and its collaborators systematically murdered some six million Jews across German-occupied Europe, around two-thirds of Europe's Jewish population.

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April 6, 1992 The Bosnian War was an international armed conflict that took place in Bosnia and Herzegovina between 1992 and 1995. The war is commonly seen as having started on 6 April 1992, following a number of earlier violent incidents. The war ended on 14 December 1995 when the Dayton accords were signed.

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after four years of devastating fighting, the first world war came to an end in 1919 in versailles. the treaty, which represented “peace” for some and a “diktat” for others, also sowed the seeds of the Second World War, which would break out twenty years later.

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hindenburg reluctantly agreed to appoint hitler as chancellor after the parliamentary elections of july and november 1932 had not resulted in the formation of a majority government – despite the fact that Hitler had been Hindenburg's opponent in the presidential election only 9 months earlier.

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June 6, 1944 The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it is the largest seaborne invasion in history

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1000 BC, The Neolithic Revolution started around 10,000 B.C. in the Fertile Crescent, a boomerang-shaped region of the Middle East where humans first took up farming. Shortly after, Stone Age humans in other parts of the world also began to practice agriculture.

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When the green revolution began in the 1960s it was before the revolution in molecular genetics: IR8, the first miracle rice, was bred without knowledge of the genes that blessed it with high yields. Breeders today can zero in on genes, but they still use traditional techniques and ever more complex pedigrees.

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gunpowder was invented in china sometime during the first millennium AD, The earliest possible reference to gunpowder appeared in 142 AD during the Eastern Han dynasty when the alchemist Wei Boyang, also known as the "father of alchemy", wrote about a substance with gunpowder-like properties.

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1760, The Industrial Revolution began in the 18th century, when agricultural societies became more industrialized and urban. The transcontinental railroad, the cotton gin, electricity and other inventions permanently changed society and also known as the First Industrial Revolution, was a period of global transition of human economy towards more widespread

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Belgian chemist and clever marketeer leo baekeland pioneered in the first fully synthetic plastic in 1907. He beat his Scottish rival, James Swinburne, to the patent office by one day. His invention, which he would christen Bakelite, combined two chemicals, formaldehyde and phenol, under heat and pressure

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Columbus left Castile in August 1492 with three ships and made landfall in the Americas on 12 october, ending the period of human habitation in the Americas now referred to as the pre-Columbian era. His landing place was an island in the Bahamas, known by its native inhabitants as Guanahani.

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March 15, 2011 The Syrian civil war is an ongoing multi-sided conflict in Syria involving various state-sponsored and non-state actors. In March 2011, popular discontent with the rule of Bashar al-Assad triggered large-scale protests and pro-democracy rallies across Syria, as part of the wider Arab Spring protests in the region.

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Neil Armstrong steps onto the surface of the moon

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Neil Armstrong steps onto the surface of the moon

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The world watched on television as Neil Armstrong from Apollo 11 took the first human footsteps on the moon's surface on july 20, 1969. It was the first time humans walked on another world as he stepped onto the lunar surface, Armstrong said: “That is one small step for [a] man, one giant leap for mankind.”

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January 1, 1995 The World Trade Organization is an intergovernmental organization that regulates and facilitates international trade. With effective cooperation in the United Nations System, governments use the organization to establish, revise, and enforce the rules that govern international trade.

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German goldsmith Johannes Gutenberg is credited with inventing the printing press around 1436, although he was far from the first to automate the book-printing process. Woodblock printing in China dates back to the 9th century and Korean bookmakers were printing with moveable metal type a century before Gutenberg.

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February 4, 2004 Facebook, initially titled as thefacebook.com and limited to Harvard students, launched on Feb. 4, 2004. In 2006, Facebook became open to general public

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The Battle of Thermopylae ends in defeat for the Greeks

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The Battle of Thermopylae ends in defeat for the Greeks

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After three days of holding their own against the Persian king Xerxes I and his vast southward-advancing army, the Greeks were betrayed, and the Persians were able to outflank them. Sending the main army in retreat, leonidas and a small contingent remained behind to resist the advance and were defeated.

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July 1, 1916 The Battle of the Somme was one of the most bitterly contested and costly battles of the First World War, lasting nearly five months. Despite this, it is often the first day of the battle that is most remembered. The offensive began on 1 july 1916 after a week-long artillery bombardment of the German lines.

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The first atomic bomb, named Little Boy, was dropped on Hiroshima from the Enola Gay, a B-29 bomber, at 8:15 AM on August 6, 1945. The second bomb, named fat man, was dropped on nagasaki from the bockscar also a B-29 bomber at 11:02 AM on August 9, 1945