Astronomers from Texas State University have suggested an alternative date for Julius Caesar’s first landing in Britain. Donald W. Olson and Russell Doescher dispute the accepted dates for the Roman landing of August 26-27, 55BC, because the English Channel was flowing in the wrong direction. Tests carried out in August 2007 provided a unique opportunity for comparison with 55BC tidal conditions. It prompted the astronomers to suggest a revised date of August 22-23 for the invasion at Deal on the south coast of England. The findings are reported in the August issue of Sky & Telescope magazine.