To give some perspective: Chariots were invented circa 2000 BC and were the fastest form of transportation known to man for around 3800 years until trains in the 1800′s. Then 100 years later we were flying, and 66 years after that we were on the Moon.
Laura Ingalls Wilder lived to 90. The first time she crossed the prarie, she walked. The last time she crossed the prarie, she flew in a jet.
