For historical mariners, the delta of the Indus served as an crucial geographical landmark. Karachi endured as an entrepot for change along both land and sea routes for numerous centuries, till the British commenced to amplify their colonial management beneath the aegis of the East India Company. Recognising the economic and strategic significance of Karachi as a way of get right of entry to to the whole north western flank of the sub-continent and beyond it, to Russia, they annexed Sindh in 1843.
