• Never get involved in a land war in Asia
• Never go up against a Sicilian when death is on the line
• Never bet on a fucking Nazi

One of the giveaways for me was the complete ignorance of the Canadian post-secondary system.

She said that she’s taking pre-health sciences at George Brown College. College in Canada means community college (which George Brown is). You take a course, typically 1-3 years, with a specific goal in mind.

Also, Canadian universities do not offer pre-med or pre-health sciences tracks. You get a degree in chemistry, biology, or whatever, and apply for med school irrespective of the program you are in. One of my classmates was accepted into medical school straight out of chemical engineering. Someone else I know was finishing a degree in Spanish literature when he was accepted into medical school.

Stirrups had been invented before the Mongol invasion, but they were not in widespread use in Europe. The Mongols had other advantages, including tactics, that gave them a decisive advantage.

The other reason that the Mongols became less invincible, of course, is that their enemies learned to use their tactics and equipment.

The Mongols had superior technology too: stirrups so that they could shoot arrows while riding their horses instead of dismounting every time they shot.