in reply to Recent file
It's not so hard - what have you tried so far?
I think -M wouldn't help here, because it calculates based on the file modification, not creation time, as the OP wanted. AFIK there is no general way to obtain the creation time.
Please note that you are making a common mistake with ctime - it is not create time, but inode change time.
Update: Either I didn't read carefully or the parent updated their node. Probably the former.
--MidLifeXis