The Pangaea super-continent broke up into tectonic plates and these moved into their approximate current locations over the space of a centuries. How do we know? By studying paleomagnetism.
The Speed of Plate Tectonics
Scientists Just Narrowed Down The Age of Earth’s Inner Core
The inner core isn't the same age as the rest of the Earth, it's younger. That's because hell began when nuclear decay started at the fall of man in Genesis 3.
Ancient Microscopic Mineral Excavation Deepens Mystery of the Origins of Earth’s Magnetic Field
The Earth's magnetic field began on the 2nd day when the inception of gravity initiated the core accretion model.