Boustrophedon is a style of writing in which alternate lines of writing are reversed, with letters also written in reverse, mirror-style. This is in contrast to modern European languages, where lines
The Forum inscription (one of the oldest known Latin inscriptions) is written boustrophedon, albeit irregularly: reading from top to bottom, lines 1, 3, 5, 7, 9, 11, 12, 14, 16 run from right to left; lines 2, 4, 6, 8, 10, 13, and 15, from left to right; 8, 9, and 16 are upside down. (From a rubbing by Domenico Comparetti.)