Belated Easter Week: Maundy Thursday

I beg the pardon of those more liturgical than myself, but I really have no clue what Maundy Thursday is. Blame it on my non-denominational background, I guess, but some regard one day above another, and some regard every day alike. I think I first heard the term just last year. I gather that it has something to do with the last evening Jesus spent with His disciples before being crucified.