But historians at Monticello itself, near Charlottesville, Va., have increasingly rendered them irrelevant by showing that the Jefferson family -- and the early world it built -- was a mixed-race enterprise, not just in the sexual sense, but at all levels of daily life.
Another monarch, Sheik Mohammed bin Rashid al-Maktoum of Dubai, and Godolphin, his global horse racing enterprise, have been the talk of Britain after what The Times of London described as British racing's "Lance Armstrong moment".
He will be returning to his birthplace, five miles away, at Banstead Manor Stud, Cheveley - part of the Juddmonte Farms breeding arm of Abdulla's racing enterprise.
Much of the money he was accused of claiming to have lost was tied to a horse-racing enterprise that he ran out of his weekend ranch outside Seattle.
Over all, it was a successful weekend for Penske's racing enterprises.
Romney spent most of his time expounding what might be termed Booker T. Washington/Thomas Sowell Republicanism — the notion that regardless of race, "free enterprise is still the greatest force for upward mobility, economic security, and the expansion of the middle class".
There are some other dark horses in the race for enterprise dominance, as well.
He found a much different reception for his skills at the track: "Baseball is regarded as a civic enterprise; racing is a barely tolerated activity".
Jobs described a strategy – moving squarely into consumer electronics when other computer companies were racing toward the enterprise (large customers) – that was compelling.
Enterprises race to adopt service oriented architectures (SOA) while at the same time security is a top concern for the CIO.
