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.
Assignment Why was Ayatollah Khomeini able to lead a successful Islamic revolution in Iran in 1979? Background In 1921 Reza Khan, commander of an Iranian cossack force, overthrew the decadent Kajar dynasty, and, as Reza Shah Pahlevi, established the Pahlevi dynasty in 1925.