Talk-Polywell.org

Anti-miscegenation laws, also known as miscegenation laws, were laws that enforced racial segregation at the level of marriage and intimate relationships by criminalizing interracial marriage and sometimes also sex between members of different races. Such laws were first introduced in North America from the late seventeenth century onwards by several of the Thirteen Colonies, and subsequently by many US states and US territories and remained in force in many US states until 1967.

http://en.wikipedia.org/wiki/Anti-miscegenation_laws

It's too bad we don't have time machines, we could take the framers of those laws to present day Vancouver and watch as they go into complete shock.

I suspect that they'd be more in shock over the sort of real estate prices that uncontrolled immigration, the selling out to wealthy foreign investors, and artificially low interest rates bring.

They'd be in even more shock if they were brought back on time to watch the pride parade, but that's another story.