From A Cursory History of Swearing:
It is certainly curious to witness the extremes to which the Scottish nation were prepared to go in legislating against the commission of this offence.
I can understand if that sentence rewrote to:
It is certainly curious to witness that the Scottish nation were prepared to go in legislating against the commission of this offence.
So what does "the extremes to" means there?
By the way, should the "were" be "was" in "the Scottish nation were prepared"?