Why Udemy offering big discount till Sept 21?

2017-09-15 02:21:03

I am wondering Why Udemy offering big discount till Sept 21, 2017?

Welcome to Udemy!Get courses in all categories for only $12 until

9/21!

what's special about Sept 21?

Is it related to global economy issue?

Did Udemy offered similar discount in past years?

Or is it just a marketing strategy as most parents busy figuring about how to pay school fees?