Timeline Friday 4 April 1969

Events on Friday 4 April 1969 2

• 1969 First Temporary Artificial Heart Implant Surgeon Denton Cooley bridges a patient to a transplant Surgeon Denton Cooley implanted the first temporary total artificial heart in a human patient in Houston, Texas, on 4 April 1969, keeping the patient alive for over 60 hours until a donor heart was transplanted. The operation was a milestone in cardiac surgery, though it proved controversial.
• 1969 Internet precursor born ARPANET design finalised The design specifications for ARPANET — the precursor to the modern internet — were finalised in April 1969.