You could say that everyone in Nebraska came from somewhere else. Ten thousand years ago, the forebearers of Native American tribes came into the Great Plains region. Two hundred and fifty years ago, French and English fur traders and Mexican traders and soldiers explored what became Nebraska. Nebraska's greatest growth occurred between the Civil War and World War I, but especially in the decade of the 1880s. Schleicher focuses on this time when roughly half the new settlers came directly from foreign countries.