Incidentally, the original NCSA Mosaic browser had no URL bar. In its place was a drop-down list containing the browse history. To type a URL you would select

Incidentally, the original NCSA Mosaic browser had no URL bar. In its place was a drop-down list containing the browse history. To type a URL you would select "Open URL" from the menu, or hit Command+U. Likewise, early versions of Netscape also hid the URL bar by default, and used Command+L to present a URL dialog box (behavior that's still present in Firefox today, when the URL bar is hidden).