<prompt> Translate the following text to EnglishMnara wa ukumbusho wa kwanza uliwekwa katika miaka ya 1780 na Dugald Stewart, profesa wa falsafa ya maadili katika Chuo Kikuu cha Edinburgh.  <response>: A colonnaded circular monument to the right was raised in the memory of Dugald Stewart, professor of moral philosophy at the University of Edinburgh in the 1780s. 