1100 Abu 'l-Fath Ahmad as-Sinjari writes chess manuscript containing 287 mansubat.
1100 1st Central European reference to chess.
1100 Chess becomes accepted as a regular featue of noble life.
1100 Chess introduced in Poland.
1100 Shogi played in Japan.
1100 The French Carolingian epic, Song of Roland, mentions chess.
1105 Omar Khayyam writes the 'rubaiyat,' using a chess game.
1106 Chess included in a list of knightly accomplishments by Petro Alfonsi.
1106 Henry I allowed his brother Robert, Duke of Nomandy, to play chess while imprisoned for 28 years.
1106 Exchequer at Westminster created; referred to as the scaccarium or chessboard.
1108 ar-Raghib died. Wrote that the Medinese refused to give their daughters in marriage to chessplayers.
1110 John Zonares, Eastern Church monk, excommunicated chessplayers.
1112 Dauphin throws chess pieces at King Henry I after losing.
1115 The emperor of the Byzantine empire is a chess addict.
1119 1st corr game: Henry I (1068-1135) of England & Louis VI (1081-1137).
1120 Oldest known chess set, the Lewis chessmen, from this period.
1123 Kyayyam wrote the RUBAIYAT with chess references
1125 Chess is banned in some byzantine churches.
1128 St. Bernard (1090-1153) forbids the knights templars from chess.
1130 Draughts, a variant of chess, invented in the south of France using backgammon pieces.
1140 The fers's (queen')s leap is introduced in Spain by Ezra.
1140 1st chess poems in Hebrew, by Ezra.
1140 Al-Mubarak writes Arabic manuscript for Abd-al-Hamid (AH manuscript)
1144 Hyde Abbey, Winchester, destroyed by fire. Chessmen from King Cnut.
1148 Alexiad of Anna Comnena mentions Byzantine Emperor Alexius Comnenus playing chess.
1150 Bone chessmen were being made. Lewis chessmen dated here.
1150 Draughts (checkers) started in France.
1157 A danish king saved himself by using a chessboard as a shield.
1167 Earliest spanish reference to chess.
1167 Abraham Ezra died in London. Wrote several Hebrew works on chess.
1173 A French manuscript uses algebraic notation.
1180 1st British reference to chess, by a Winchester monk.
1189 1st European reference to chess problems, by Gerald of Wales.
1190 King Richard I (1157-99) learns chess while on the crusades.
1190 Alexander Neckam devotes a chapter to chess in his treatise, On the Nature of Things.
1190 Neckam condemns chess for being frivolous.
1195 The rabbi Maimonides includes chess among the forbidden games.
1197 Abbot of Persigny writes to Countess of Perche warning her against chess.
1199 John Lackland, King of England, was a keen chess player.