On January 10 1985, Madonna’s Like A Virgin single was certified gold for shipment of 1 million units.
Prior to January 1 1989, the certification thresholds were Gold (1,000,000 units), and Platinum (2,000,000 units) in the USA (Recording Industry Association of America).
Today In Madonna History 
Like a Virgin-a brilliant Madonna groove and Pop/Rock song!
I had already liked Holiday and Borderline before it, but it was Like a Virgin (both song and video) that turned me into a fan. I remember the exact day – New Year’s Eve 1984. My brother played the extended mix on our turntable on repeat. I guess it brainwashed me. 🙂