So, for a while now, the common assumption when it comes to Alexylva University and the world it's set in is a world where, quote the GOI page, "Latin and Greek cultures maintain dominance at least over the Western Hemisphere". While it doesn't outright say "Roman", I'm sure several people assume this is the case; I certainly did. Then, I got to reading the SCPs properly.
SCP-961 is a device apparently used for historical research in the Alexylva universe, which is flawed so that there are "numerous inaccuracies" after 207 B.E. at the Metauro River. This is where the Battle of the Metaurus took place, and was a pivotal battle during the second Punic War, where Rome and Carthage were at war. In this battle, Claudius Nero and his army routed reinforcements intended for Hannibal Barca; these reinforcements were led by Hasdrubal, Hannibal's brother. Hasdrubal was beheaded, and his head was thrown into Hannibal's camp. Per the book The Fifteen Decisive Battles of the World by Edward Caesy, this effectively neutered any military power Carthage had in Italy, and paved the way for Rome to overtake Spain. Massive oversimplification on my part, I'll admit.
SCP-1081 (not 1801) refers to an individual known as "Magnus Barca"— presumably either Hasdrubal or Hannibal. But, Carthage lost the war- why would a Roman society be referring to a Barca as "Magnus"?
Simple: Carthage didn't lose, and here's why. In 212 BC, five years before the Battle at Metaurus, Archimedes of Syracuse was murdered by a Roman soldier, despite orders to capture him. This is what happened both in our universe, and in the mainline SCP Universe. However, in the ALEXYLVA universe, Archimedes was not only spared, but somehow either escaped or used a certain device to hold off the Romans— this device being his legendary Heat Ray, which has been proved unfeasible by modern standards (See: Mythbusters). However, this Heat Ray, in the SCP Universe, not only worked, but is cataloged under SCP-390.
Here's my thought: Hasdrubal Barca won the Battle of Metaurus, in part because of the Archimedian Heat Ray, and from there, marched to Rome. With Rome's forces crippled and cowering, they cowed down to his demands and created a new state, where Carthage effectively ruled the world. And, thanks to the technology of Archimedes, the present day tech in this universe has progressed to the point where they send mail using Einstein-Rosen Bridges and can see into the past with sundials.