We invented numbers to count the objects around us. May be we wanted to know who has more and who has less. From the invention of numerical system, mathematics started to evolve. However, this invention we are going to talk about, took mathematics, modern science, engineering and astronomy to an unimaginable place. In this podcast, we are going to talk about the significance of the unnatural number called Zero. (References: scientificamerican.com, vox.com, livescience.com, zerorigindia.com)