Student or Learner
I'm currently reading "Cat's Cradle" by Kurt Vonnegut. I just read the following sentence:
"I learned from the publication of my fraternity, _The Delta Upsilon Quarterly_, that Newton Hoenikker, son of the Nobel Prize physicist, Felix Hoenikker, had been pledged by my chapter, the Cornell Chapter."
Can anyone give me an idea what does "had been pledged by my chapter" means?
Thanks in advance.
US University traditions involved - I'd better stay out of it!