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900 CE
1000 CE
1100 CE
1200 CE
1300 CE
1400 CE
1500 CE
1600 CE
1700 CE
1800 CE
1900 CE
973 CE: First text description of the coronation of an English monarch, the crowning of King Edgar.
1066 CE: William the Conqueror holds the first coronation at Westminster Abbey.
1100 CE - 1300 CE: Possible period in which the Koh-i-Noor diamond was discovered in the Golconda mines in India.
1216 CE: New regalia items are created for the coronation of Henry III of England.
1216 CE: King John of England loses some of the Crown Jewels while escaping rebels.
1649 CE: The Parliamentarians destroy, dismantle or sell off the British Crown Jewels.
1661 CE: New Crown Jewels are created for the coronation of Charles II with some of the pre-revolution regalia being found and reused.
1905 CE: The Cullinan diamond is discovered in Transvaal, South Africa.
1907 CE: The Cullian diamond is presented to Edward VII of England for his 66th birthday.
1908 CE: Joseph Asscher and Company of Amsterdam cut the Cullinan diamond into 9 large stones and 96 smaller gems.
1908 CE: The Cullinan I and II diamonds are presented to Edward VII.
1910 CE: The Cullinan II diamond is set into the Imperial State Crown of the British Crown Jewels.
1911 CE: The Cullinan I diamond is added to the Sovereign's Sceptre of the British Crown Jewels.