1 The meniscus is a rubbery C-shaped disc that cushions your knee and acts as a shock-absorber. 2  It also helps spread weight evenly so your bones donât rub together. 3  Tears to the meniscus are often caused by sudden twisting or other things you might do while playing sports.
Ayatollah Khomeini died in 1989 just months after firing his heir apparent, leaving no designated replacement. With the help of Rafsanjani, Khamenei emerged as the default choice to become the new supreme leader.
With the approval of Khomeini, the militants demanded the return of the shah to Iran to stand trial for his crimes. The United States refused to negotiate, and 52 American hostages were held for 444 days. Mohammad Reza Shah Pahlavi died in Egypt in July 1980.