Johannes Gutenburg is the answer you're looking for.
On 10 January 49 BC, leading one legion, the Legio XIII Gemina, General Julius Caesar crossed<span> the </span>Rubicon<span> River, the boundary between the Cisalpine Gaul province to the north and Italy proper to the south, a legally-proscribed action forbidden to any army-leading general.
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a member of a Semitic people, originally from the Arabian peninsula and neighboring territories, inhabiting much of the Middle East and North Africa
