On September 22nd, 1862, already almost two years into the US Civil War, President Abraham Lincoln issued the Emancipation Proclamation stating that, as of January 1st, 1863, all slaves within any State would be "thenceforward, and forever free." This proclamation freed 3.5 million men and women...

In the Spring of 334 BC, the 22-year-old Macedonian king, Alexander III (r. 336-323 BC - not yet ‘the Great’), invaded the vast Achaemenid Persian Empire with an elite but small army of some 30-40,000 veteran infantry and only 5,000 cavalry. This invasion was the culmination of almost a century...