when was the first series of poldark made
Poldark (1975 TV series) Poldark is the original version of the BBC television series adaptation of the novels of the same title written by Winston Graham. The adaptation was first transmitted in the UK between 1975 and 1977.
Polio vaccine The first polio vaccine was the inactivated polio vaccine.[1] It was developed by Jonas Salk and came into use in 1955.[1][5] The oral polio vaccine was developed by Albert Sabin and came into commercial use in 1961.[1][6] They are on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.[7] The wholesale cost in the developing world is about US$0.25 per dose for the oral form as of 2014.[8] In the United States it costs between $25â€“50 for the inactivated form.[9]