Leonard William King, Dictionary of National Biography (1901)
“ Botta, however, was the first to undertake systematic excavations at Kuyunjik. During three months in 1842 he opened trenches in the mound, but as he did not meet with encouraging results he transferred his operations to Khorsabad, the site of Dûr Sharrukin, the city of Sargon II. The fine sculptures which he there dug up led him to form the erroneous belief that Khorsabad, and not Kuyunjik, was the site of Nineveh, and Layard fell into a similar error when he opened the mound at Nimrûd and wrongly identified it with Nineveh. ”
