Section two: World desert map

1927

 Warner's released The Jazz Singer, which had synchronized dialogue (and singing) in a feature film. 

100 BC in China paper was invented in China.

In 105 AD Ts’ai Lun ( during the Han dynasty) was the first to start a paper-making industry.

1949
The North Atlantic Treaty (Washington Treaty) signed in Washington, D.C. on 4 April 1949  is the treaty that forms the legal basis of, and is implemented by, the North Atlantic Treaty Organization (NATO). The treaty’s mutual self-defense clause was never invoked during the Cold War. It was invoked for the first time in 2001 after 11 September 2001.

Section iv: Historical event: world

1215
Magna Carta Libertatum (Great Charter) a charter of rights agreed to by King John of England to make peace between the unpopular King and a group of rebel barons. First drafted by the Archbishop of Canterbury it promised the protection of church rights, protection for the barons from illegal imprisonment, admission to swift justice, and limitations on payments to the empire's Crown which was to be executed by council of 25 barons. Both sides breached their commitments, and the charter was invalided by Pope Innocent III, leading to the First Barons' War.

Section v: Lens and its uses

Section vi: quiz