Changes

This is a '''timeline of {{w|Helen Keller International}}''', one of the oldest international nonprofit organizations devoted to preventing blindness and reducing malnutrition worldwide."<ref name="HKI">{{cite web |title=Helen Keller International (HKI) |url=https://www.devex.com/organizations/helen-keller-international-hki-24491 |website=devex.com |accessdate=4 September 2019}}</ref>