Classic Free Trial for WoW Classic?

Completely new player here, is there any way I can try WoW Classic for free? When I google it the first link is sponsored by Blizzard saying I can but other people are saying I can't so I'm really not sure.I seen there is lvl 20 on the main game but if I'm honest I'm not really interested in that. Just the original Classic game.Thanks for the help via /r/wow https://ift.tt/yn7uHlJ