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Beginning of Wu Zetian's Zhou Dynasty in China.
Theuderic II is the king.
Willibrord left the Abbey of Rathmelsigi.
Between 690 and 692, Utrecht fell into the hands of Pippin of Herstal. This gave the Franks control of important trade routes on the Rhine to the North Sea.
The approximate date of the earliest known blindfold chess, played by Sa'id bin Jubair
Building of the Dome of the Rock