What did levi strauss sell to the '49ers

He sold a pair of cotton-fabric-ed pants that he invented in 1853. The 49'ers then went back to their homes, and told everyone about their new, strong pants, that were much comfortable than other pants, more durable, and lasted longer. A few years later, Levi Strauss became famous would wide, for his "Those Pants of Levi's." He then became very rich, and had hundreds of employees that worked for him, selling his famous pants, shirts and other clothing, for men, women, and children.

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.