International School of Islamabad International School of Islamabad International School of Islamabad (ISOI) is an international school in Islamabad, Pakistan, serving K-12. Established in 1965, it moved to its present site in Islamabad in 1975. Previously it was located in Rawalpindi. The United States Military Advisory Aid Group (USMAAG) established a one-room school in Rawalpindi, Pakistan in 1965; the school moved to a prefabricated building located on of land in January 1966. While the school was in Rawalpindi it served grades K-8. Initially the younger students directly took classes while correspondence course were used for higher grade levels. Wives of UMAAG employees taught the
Climate of Islamabad El Niño over Pakistan. It just recorded of rain during the Monsoon season in 2009. The highest rainfall of was recorded in Islamabad during 24 hours on 23 July 2001. The record breaking rain fell in just 10 hours. It was the heaviest rainfall in Islamabad in the past 100 years. The following is the Monsoon rainfall in Islamabad since 2006 based on the data from Pakistan Meteorological Department.<ref name="http://www.pakmet.com.pk"></ref> On 23 July 2001, Islamabad experienced the record breaking of rainfall, which was the 24 hours heaviest rainfall in Islamabad and at any locality in Pakistan during the past 100