Beyond the fact that a degree in public health can lead to fulfilling careers in medicine, health care, biotechnology and the life sciences, there is a strong and evidenced need for public health workers in the coming years.
Confidence votes 8. Sanskrit is the oldest language in the world, please see references below. Vedic Sanskrit is the oldest attested language of the Indo-Iranian language family. It is the language of the Vedas, the oldest Shruti texts of Hinduism, compiled over the period of the mid 4th to mid 3rd millennium BCE.
5,000 years ago, it is believed that the Sumarians, were the first humans to put a written language in order, using cunieform, tapping written language on a rock. These stones lasted for thousands of years, as paper did not; so, who really knows.