55 BCJulius Caesar attempts to invade Britain, but was met with strong resistance from the local tribes, who elected a super-leader: the Celtic King Eowyn, who summarily became first member of the Britannian royal line.
Sakuradite (known as the "Philosopher's Stone" at the time) was discovered near Stonehenge. The scarcity of Sakuradite impeded the research to turn it into a viable energy source. However, in his travels, Marco Polo journeyed further into the East, reaching Japan and discovered the nation had a large deposit of Sakuradite.
The topic of Henry IX ascension to the throne is mentioned briefly during a History Lesson in Ashford Academy.16th Century a.t.b.
Elizabeth II, who remained single throughout her life, bears a son, Henry IX. The potential fathers, Robert Dudley, 1st Earl of Leicester, Robert Devereux, 2nd Earl of Essex, and the Duke of Britannia Carl, gained influence and power, with this knowledge.
Henry IX ascended to the throne, after the death of Elizabeth II, starting the Golden Age of the Tudor Dynasty.
1770s a.t.b.The American Revolution (also known as Washington's Rebellion) occurs. The current Duke of Britannia bribes Benjamin Franklin with promises of titles and territories in the colonies, who was charged with appealing to Louis XVI for assistance in the American colonies' war for independence.
Thereafter, Benjamin Franklin is given the title of Earl. As a result, the Continental Army suffers a decisive defeat during the Siege of Yorktown, with the death of George Washington.
End of the 18th Century a.t.b.The Western world enters the Age of Revolution, with numerous national revolutions taking place, save Britannia, under the rule of Henry X, who continued to hold absolute monarchy.
After French revolutionary Napoleon Bonaparte emerges, he wins the Battle of Trafalgar and occupies London.
In 1807 a.t.b., Queen Elizabeth III retreats to Edinburgh, where a revolutionary militia arrests and forces her to abdicate, ending the monarchy. This event became known as The Shame of Edinburgh (The Humiliation of Edinburgh, in the English dub). However, the current Duke of Britannia, Ricardo Von Britannia, and his friend and subordinate, the Knight of One, Sir Richard Hector, brings Elizabeth III and her followers to the New World and establishes a capital on the east coast of North America.
1813 a.t.b.Elizabeth III nominates her lover, Ricardo Von Britannia, as her successor upon her death. She ends her reign for being "The Queen who loved throughout her stormy life". The Britannian calendar, Ascension Throne Britannia (a.t.b.), is established, with the origin year set to the ascendancy of the first Celtic King.
1821 a.t.b.Napoleon Bonaparte dies on his way back to France, after his defeat at the Battle of Waterloo; although it was never proven, it is rumored that assassins poisoned his food in accordance to Elizabeth III's will. Her last words included the famous line, "I do not forget slights to my honour."[citation needed]
2010 a.t.b.After the Indochinese Peninsula was conquered by Britannia and became Area 10, Japan, who was originally neutral, decided to align its policy with Chinese Federation and EU's politics and apply economic pressure upon Britannia. Both Chinese Federation and EU and their allies have blockaded the ports of Britannia, hoping to force negotiations
The Second Pacific War erupts, resulting in the conquering of Japan by Britannia. The end of the war signifies Japan as a formal colony of Britannia, renamed Area 11 and its citizens known as "Elevens".[5]
2017 a.t.b.The Black Rebellion breaks out. Zero, leader of the Order of the Black Knights and attempts to liberate Area 11, forming the United States of Japan.
Governor-General and Third Prince Clovis La Britannia is killed by Zero, the leader of the Order of the Black Knights
Second Princess Cornelia Li Britannia is appointed Governor-General of Area 11, naming Third Princess Euphemia Li Britannia as Lieutenant Governor-General and attempts at destroying the Black Knights all end in failure.
Using her power, Euphemia tries to creates a Special Administrative Zone of Japan.[9] It was revealed to be a ploy to massacre the "Elevens", and she is killed by Zero.[10]
The Black Knights ignite riots across the country as they continue to push towards Area 11 Government Complex. The rebellion is eventually pushed back and crushed, with most of the Black Knights killed or captured.[11] Area 11 is demoted to a correctional sub-area.
2018 a.t.b.Within the Chinese Federation Consulate of Area 11, Zero reappears and redeclares the United States of Japan. Suzaku Kururugi becomes a member of the Knight of the Rounds
Eleventh Princess Nunnally Vi Britannia becomes Governor-General of Area 11, and then reestablishes the Special Administration Zone of Japan, with Zero's support, on the condition that he be Exiled.
Zero, along with over a million of his supporters, are Exiled from Area 11 and seek asylum in the Chinese Federation
Li Xingke and Zero disrupt the arranged wedding between First Prince Odysseus U Britannia and Empress Tianzi of the Chinese Federation.