Another Madras Week is here and there are numerous heritage and exhibitions happening back to back. One among them that got the attention of many heritage enthusiasts was the Buckingham Canal walk that was organised a few days ago. D. Hemachandra Rao, a lover of old Madras and the one who has done extensive research in tracing the history of Buckingham Canal, was the narrator of the walk. According to him, the vision of building this canal that now runs from Pedaganjam in Andhra to Marakkanam in Tamil Nadu, covering 262 miles, started in the late 18th century. “The vision to build a canal started in 1782. And the man who first visualised it was Stephen Popham, a great administrator,” starts Rao.