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.
The history of the Welsh language. Welsh (Cymraeg) is the oldest language in Britain dating back possibly 4,000 years. The majority of European languages, including Welsh, evolved from a language now called Indo-European, which developed into nine different language groups, one of which was Celtic.In turn, Celtic developed its own family of languages.he majority of European languages, including Welsh, evolved from a language now called Indo-European, which developed into nine different language groups, one of which was Celtic. In turn, Celtic developed its own family of languages.