Hominids evolved and developed for millions of years prior to the arrival of Homo sapiens on the Earth. This evolution was slow. The development of a new skill or tool often took thousands of years. With the arrival of Homo sapiens, this all changed. The speed of advancements increased dramatically. Instead of thousands of years, great progress was made in hundreds or even dozens of years.
Nostalgia is like a grammar lesson; you find the present tense and the past perfect.
The United Church Observer
Lewis & Clark stayed near present day Astoria, Oregon during the winter of 1805-06, and built Fort Clatsop for shelter.