<Li> January 11: General Zia - ul - Haq inaugurates first session of Federal Council (Shoora) in Islamabad . </Li> <Li> February 22: Noted Urdu poet, Josh Malihabadi, dies in Islamabad . </Li> <Li> April 8: Jahangir Khan wins British Open Squash Championship . </Li> <Li> December 21: Writer of Pakistan's national anthem, Hafeez Jalandhari dies . </Li>

Briefly describe the changes in pakistan between 1988 and 1999