Maps of Antarctica without ice are imaginings.
This website points out some of the difficulties encountered when one tries to interpret the map of 'Terra Australis' as drawn by Orontius Finaeus (Oronce Fine).
Orontius Finaeus

Antarctica became fully covered with ice some 25 million years ago, during the Miocene Era. The ice melted and advanced several times during the Pliocene Era (2-7 million years ago). Homo sapiens appeared sometime between 50-200 thousand years ago; the continent remained ice-covered during that time span.
Look up 'Antarctica Geological Time Line' in Google if you are interested. This website provides an introduction.