The first ever teacher

This morning, I asked Papa - "how did the first teacher ever learnt everything so that she could teach the second teacher?" Papa - "Beta, that is a very good question. How do you think?" Keshav - "I know. She went on the Internet and learnt everything and then she taught the second teacher and then the second teacher taught another teacher and so on." PS: Papa later told me that there was no Internet then. PPS: I asked whether there was any Microsoft then? And he told me there was no Microsoft also... Wow... So amazing...