Part of Hindu Kush is in Pakistan.
 The actual term 'hindu' first occurs, states Gavin Flood, as "a Persian geographical term for the people who lived beyond the river Indus (Sanskrit: Sindhu)", more specifically in the 6th-century BCE inscription of Darius I
 It was so called, wrote Ibn Battuta, because many Indian slaves died there of snow cold, as they were marched across that mountain range

