the.com/manifest destiny

means The belief, widespread in 1800s America, that the United States was fated and divinely entitled to expand its territory across the entire continent.

from The phrase was coined in 1845 by newspaper editor John O'Sullivan, who wrote of America's 'manifest destiny to overspread the continent' while arguing for the annexation of Texas. It caught on fast — a tidy slogan that turned westward expansion, and the displacement of Native peoples it required, into something that sounded less like conquest and more like fate.