Now, some historians will refer to these three empires as the gunpowder empires. If someone says gunpowder empires, I'm referring to these three. The reason why they're called that is this view that these major centralized empires were able to form only with the power of gunpowder. The Ottomans, famous for early use of artillery, the Mughals, Babur in particular, came to power with gunpowder. But today, historians are somewhat skeptical of grouping just these three empires as gunpowder empires. You had many other large centralized empires form before the use of gunpowder. So that whole thesis is not as popular today.