Nice informative post.Lets see what happens.Hive account@haejin sir last time i commented on your post someone down voted me.Whatever happens i am always with you.Hive account@upvoted and resteemed.Hive account@haejin sir do you have any idea about international mother language day?If you don't then click on this link.You will like it for sure https://steemit.com/blog/@rupok/international-mother-language-day