That boundary had previously been dated at 65.5 million years ago, give or take 300,000 years.How did the first peoples know which foods were "safe" to eat? Food historians make educated guesses based on ancient records and modern practices.Professor Willard Libby produced the first radiocarbon dates in 1949 and was later awarded the Nobel Prize for his efforts.Radiocarbon dating works by comparing the three different isotopes of carbon.
Berries, nuts, fungus, and water sources were especially complicated and concernful.
Thus, even with the exercise of considerable caution, it is likely that many degrees of food poisoning, from mild stomach disorders to death, occurred before man became fully aware of the limits of his food resources-- both plant and animal.
Dating is a technique used in archeology to ascertain the age of artifacts, fossils and other items considered to be valuable by archeologists.
I was frustrated with my job, which offered little upward mobility, and was thinking about quitting it to pursue my goal of becoming a full-time freelance writer.
Holding me back were my lack of savings and my fear of sacrificing a regular paycheck. So what if I had to tap into my inner geisha to secure a patron?