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All About History Books

The Chronicle of Abbot Ralph of Coggeshall

Describes the reigns of Kings Henry II, Richard I, John and Henry III, providing a wealth of information about their lives and the events of the time. Ralph's work is detailed, comprehensive and objective. We have augmented Ralph's text with extracts from other contemporary chroniclers to enrich the reader's experience.

Available at Amazon in eBook and Paperback format.

Metric System

Metric System is in General Things.

Distance Metric System

Distances Greater Than a Metre

Gigametre

Gigametre. One thousand million metres. Abbreviation Gm.

Kilometre

Kilometre. One thousand metres. Abbreviation Km.

Mercury ...

is, on average, 0.39 AUs from the Sun.

has a diameter of 2440 Kms; around one third of the Earth.

has an eccentic orbit with the closest distance to the Sun being 47 million kilometers, and the farthest distance being 70 million kilometers.

has a year of 88 days.

spins on its axis every 59 days.

is tilted at 2 degrees.

formed around 4.5 Billion years ago.

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Venus

is, on average, 0.67 AUs from the Sun.

has a diameter of 12.104 Kms; 95% of that of Earth.

has a year of 225 Days.

has a tilt of 3 degrees.

Is known as both the Morning Star and the Evening Star since it is brightest from the Earth at both sunrise and sunset.

Megametre

Megametre. One million metres. Abbreviation Mm.

Metre

Metre. The standard unit of distance in the Metric System.

Mass Metric System

Gram

Gram. The standard unit of distance in the Metric System. Abbreviated as g.

Masses Greater Than a Gram

Exagram

All About History Books

William of Worcester's Chronicle of England

William of Worcester, born around 1415, and died around 1482 was secretary to John Fastolf, the renowned soldier of the Hundred Years War, during which time he collected documents, letters, and wrote a record of events. Following their return to England in 1440 William was witness to major events. Twice in his chronicle he uses the first person: 1. when writing about the murder of Thomas, 7th Baron Scales, in 1460, he writes '… and I saw him lying naked in the cemetery near the porch of the church of St. Mary Overie in Southwark …' and 2. describing King Edward IV's entry into London in 1461 he writes '… proclaimed that all the people themselves were to recognize and acknowledge Edward as king. I was present and heard this, and immediately went down with them into the city'. William’s Chronicle is rich in detail. It is the source of much information about the Wars of the Roses, including the term 'Diabolical Marriage' to describe the marriage of Queen Elizabeth Woodville’s brother John’s marriage to Katherine, Dowager Duchess of Norfolk, he aged twenty, she sixty-five or more, and the story about a paper crown being placed in mockery on the severed head of Richard, 3rd Duke of York.

Available at Amazon in eBook and Paperback format.

Exagram. One million million million grams.

Gigagram

Gigagram. One thousand million grams.

Kilogram

Kilogram. One thousand grams.

Megagram

Megagram. One million grams.

Petagram

Petagram. One thousand million million grams.

Teragram

Teragram. One million million grams.

Yottagram

Yottagram. One million million million million grams.

Zettagram

Zettagram. One thousand million million million grams. It is abbreviated as Zgs, or, possibly g21.

Non-Metric Units

Non-Metric Distances

Astronomical Unit Length

All About History Books

The History of William Marshal, Earl of Chepstow and Pembroke, Regent of England. Book 1 of 2, Lines 1-10152.

The History of William Marshal was commissioned by his son shortly after William’s death in 1219 to celebrate the Marshal’s remarkable life; it is an authentic, contemporary voice. The manuscript was discovered in 1861 by French historian Paul Meyer. Meyer published the manuscript in its original Anglo-French in 1891 in two books. This book is a line by line translation of the first of Meyer’s books; lines 1-10152. Book 1 of the History begins in 1139 and ends in 1194. It describes the events of the Anarchy, the role of William’s father John, John’s marriages, William’s childhood, his role as a hostage at the siege of Newbury, his injury and imprisonment in Poitou where he met Eleanor of Aquitaine and his life as a knight errant. It continues with the accusation against him of an improper relationship with Margaret, wife of Henry the Young King, his exile, and return, the death of Henry the Young King, the rebellion of Richard, the future King Richard I, war with France, the death of King Henry II, and the capture of King Richard, and the rebellion of John, the future King John. It ends with the release of King Richard and the death of John Marshal.

Available at Amazon in eBook and Paperback format.

Astronomical Unit Length. 149,597,870,700 metres ie 150 Gigametres. The average distance from the Earth to the Sun.

Light Year

Light Year. The distance travelled by light in one year. 9.46×1012 km.

The Milky Way Galaxy is one of many galaxies that form the Universe, each of which, on average, contains one hundred million stars. NASA has estimated there are 200 billion galaxies with the total number of stars being between 1019 and 1024 stars.

The Milky Way contains between 100 and 400 billion stars, and around the same number of planets. The Solar System is located 27,000 light-years from the centre of the Milky Way ie 255,420,000,000,000,000 Km.