Knowledge Zone#OnThisDay Charles #Goodyear received a patent for #Vulcanization (1844) - a process to strengthen rubber.
First #Blood #Transfusion to human took place (1667)
Today is Global #WindDay and World Elder #Abuse #Awareness Day.
#OnThisDay Charles #Goodyear received a patent for #Vulcanization (1844) - a process to strengthen rubber.
First #Blood #Transfusion to human took place (1667)
Today is Global #WindDay and World Elder #Abuse #Awareness Day.