Where exactly did you get this crazy fact from? I sure some blind hardcore communalist from a previous generation told you this. How does it matter who speaks what. Be Indian! Hindi is the official language of India and you should respect it, as much as you do your mother tongue, like I do. BTW: Marathi is estimated to be over 1300 years old and it is evolved from Sanskrit through Prakrit and Apabhramsha, as old as and rich in literature as Bengali. Be proud of this but it does not make Hindi to have derived from it. Hindi also has the same roots in Sanskrit with some dilutions and cross cultural influence, nothing to do with Marathi. Be proud but be real and fair too.