This article is exactly the reason that Urban Times has been such a staple of this blog. It (gently) breaks up the argument that often arises when a new project is proposed in a historic neighborhood. Of course, this should be somewhat obvious even without the Sandborn maps (which are great). Historic neighborhoods near downtown were settled before the age of the automobile, so people needed goods and services near their doorsteps. It stands to reason that mixed-use buildings were an integral part of the neighborhoods. And I hope they can be so again.