What is 990s?
The '''990s''' was a decade that began on 1 January 990 and ended on 31 December 999. It is distinct from the decade known as the '''''100th decade''' which'' began on January 1, 991. and ended on December 31, 1000.{{decadebox|99}} ==Events== * [[Sei Shonagon]] writes ''[[The Pillow Book]]'', a compilation of her daily observations, thoughts and feelings as an attendant to [[Empress Sadako]] in [[Japan]]'s Imperial Court. [[Category:990s| ]]