The House of Saud and the House of Wahhab
Shaikh Saud has passed away and his son, Muhammad, has taken over the leadership of the House of Saud, turning it into a dynasty. He will expand its territories near modern day Riyadh into a small emirate. (An emirate is a territory or state and Muhammad will become its Emir.) During the mid-1700s the Emir will make a deal with the House of Wahhab, often called Wahhabists. They prefer to be called Salafists (meaning, the Pious Ones). There is a certain appeal to a religious movement with clear-cut rules. There is also a potential conflict with a ruling government since fundamentalists do not draw a clear line between the secular and the sacred. The House of Saud will agree to protect the House of Wahhab. In exchange the House of Wahhab will not take over the Emirate. It will be a difficult balance to maintain over the centuries. The Emir will rule until his death in 1765. He will be succeeded by his son, Abdul Aziz, who will expand the emirate into about two-thirds the size of modern day Saudi Arabia.     
Voltaire Is Given the Boot
Last year the playwright, Voltaire, was arrested for challenging a man to a duel. The Queen of France loved his plays and gave him money for his efforts, but some fellows didn't particularly like his haughty attitude so one evening a few ruffians gave Voltaire a beating. He knew who had ordered it since the man was shouting from his carriage "Don't strike his head; something good may come out of that." After some practice with his sword Voltaire challenged the man to a duel, but dueling is a capital offense in France, and the King was unwilling to have Voltaire killed so he had him put into the Bastille for his own good. Voltaire pleaded for his freedom willing to accept exile to England, and so it was granted. This year he lands on the shores of Greenwich in the midst of a festival. He is delighted and he will learn a lot about the freedoms granted Englishmen and the chains that still bind them. He will also find himself penniless. The line of credit he had arranged with a banker in London was no good. The banker had gone bankrupt, but Voltaire soon found many people willing to back him for the next three years. He will learn a lot that he can carry back to France, and it is going to rock the world.  
The Invention of the Gridiron Pendulum
The fellow who will invent the marine chronometer will first have to solve certain accuracy problems with clocks. The current problem is the length of a pendulum. A pendulum is made from a metal rod and the rod has a certain length to ensure that it swings back and forth at a known and calculated speed. Unfortunately differences in temperature throughout the day and from season-to-season will cause the metal rod to expand and contract, thus lengthening and shortening the rod. Enough inaccuracies creep in that it has become a problem. John Harrison solves this problem with a clever combination of different metals arranged in a frame. The different metals expand and contract at different rates and offset each other, thus keeping the length of the pendulum constant.  
This Year in Wikipedia
Year 1726, Wikipedia.
- Emirate - definition of emirate (2016). Retrieved on 8 February 2016. “(Islam) the government, jurisdiction, or territory of an emir”
- A Royal Family Tree - House Of Saud - FRONTLINE. PBS (August 1, 2005). Retrieved on 8 February 2016. “The House of Al Saud traces its origins to the 18th century emir, Muhammad ibn Saud, whose family ruled large parts of the Arabian Peninsula for over three hundred years. The modern House of Saud was established in 1932, when Abd al-Aziz ibn Saud, a direct descendent of the 18th-century ruler, established the Kingdom of Saudi Arabia with himself as absolute monarch.”
- King Abdul Aziz Bin Abdul Rahman Al-Saud. GlobalSecurity.org (2016). Retrieved on 8 February 2016. “'Abd al-'Aziz ibn 'Abd al-Rahman Al Sa'ud was in the sixth generation in direct descent from Sa'ud ibn Muhammad ibn Muqrin, who died in 1725 and from whom the Al Sa'ud and Saudi Arabia take their names.”
- The Saud Family and Wahhabi Islam, 1500-1818. au.af.mil (December 1992). Retrieved on 8 February 2016. “The Al Saud originated in Ad Diriyah, in the center of Najd, close to the modern capital of Riyadh. Around 1500 ancestors of Saud ibn Muhammad took over some date groves, one of the few forms of agriculture the region could support, and settled there. Over time the area developed into a small town, and the clan that would become the Al Saud came to be recognized as its leaders.”
- House of Saud - Wikipedia (2016). Retrieved on 8 February 2016. “The family has thousands of members. It is composed of the descendants of Muhammad bin Saud, founder of the Emirate of Diriyah, known as the First Saudi state (1818–91), and his brothers, though the ruling faction of the family is primarily led by the descendants of Ibn Saud, the modern founder of Saudi Arabia.”
- Alex Shrugged notes: The label of Wahhabism is a bit of an insult. I use it because I mean no insult and most of the people reading this segment (or hearing it) know it as Wahhabism. I will attempt to use the words Wahhabism and Salafism interchangeably, but I will tend toward using the label Wahhabism.
- Grun, Bernard. The Timetables of History: A Horizontal Linkage of People and Events. Simon and Schuster, 334-335. “Voltaire, banished from France, flees to England (-1729)”
- Age of Voltaire: A History of Civilization in Western Europe from 1715 to 1756, With Special Emphasis on the Conflict Between Religion and Philosophy, The, The Story Of Civilization. Simon and Schuster. “Six ruffians pounced upon him and beat him mercifully. Rohan, directing the operation from his carriage, cautioned them, "Don't strike his head; something good may come out of that."”
- Deist - definition of deist (2016). Retrieved on 8 February 2016. “A religious belief holding that God created the universe and established rationally comprehensible moral and natural laws but does not intervene in human affairs through miracles or supernatural revelation.”
- English Civil War - Wikipedia (2016). Retrieved on 8 February 2016. “During the height of Puritan power in the Commonwealth and the Protectorate, episcopacy was formally abolished in the Church of England on 9 October 1646. The Church of England remained Presbyterian until the Restoration of the monarchy with Charles II in 1660.”
- Clarke's three laws - Wikipedia (2016). Retrieved on 8 February 2016.
- Grun, Bernard. The Timetables of History: A Horizontal Linkage of People and Events. Simon and Schuster, 334-335. “John Harrison, Eng. Clockmaker (1693--1776), invents gridiron pendulum”
- Gridiron pendulum - Wikipedia (2016). Retrieved on 7 February 2016. “In ordinary clock pendulums, the pendulum rod expands and contracts with changes in temperature. The period of the pendulum's swing depends on its length, so pendulum clocks rate varied with changes in ambient temperature, causing inaccurate timekeeping. The gridiron pendulum consists of alternating parallel rods of two metals with different thermal expansion coefficients, such as steel and brass. The rods are connected by a frame in such a way that their different thermal expansions (or contractions) compensate for each other, so the overall length of the pendulum, and thus its period, stays constant with temperature.”