They went down the yarmuk river an took over
This is true, Columbus came to the new world in 1492, and from then on, more people migrated to the new world.
I believe your answer is C. incandescent bulb
The correct answer is - A. Devonian.
The Devonian is one of the seven periods of the Paleozoic Era. It lasted for 50 million years, from 410 million years ago until 360 million years ago. It is the period in which the first insects evolved, the first seeded plants, as well as the first land vertebrates. This period came after the Silurian period, and was followed by the Mississippian period.
