Role and Importance of Data in Public Health. Address the basic concepts, methods, and tools of public health data collection, use, and analysis and why evidence-based approaches are an essential part of public health practice.
Every language in the world-from English to Mandarin-evolved from a prehistoric 'mother tongue' first spoken in Africa tens of thousands of years ago, a new study reveals.
Although we do not know what this first spoken language with grammar and syntax was, it is likely it appeared somewhere between 100,000 and 50,000 years ago in Africa. The first language of man is still part of us today. it is part of our primal vocabulary.