Peshawar remained an important centre on trade routes between India and Central Asia. The Peshawar region was a cosmopolitan region in which goods, peoples, and ideas would pass along trade routes. Its importance as a trade centre is highlighted by the destruction of over one thousand camel-loads of merchandise following an accidental fire at Bala Hissar fort in 1586. Mughal rule in the area was tenuous, as Mughal suzerainty was only firmly exercised in the Peshawar valley, while the neighbouring valley of Swat was under Mughal rule only during the reign of Akbar.