February 23 532 – Byzantine Emperor Justinian I Orders Construction of Hagia Sophia

February 23 532 – Byzantine Emperor Justinian I Orders Construction of Hagia SophiaRate this post Some 170 years after the first construction of a church on the Bosporus River, the Byzantine Emperor Justinian I ordered the construction of a third building on the site. Just six weeks after the Nika Revolt left the second church a smoldering ruin, the project for a new house of worship began on February 23, 532. Taking elements of the previous design, the massive basilica is one of the ancient world’s masterpieces, surviving in Istanbul, Turkey to this day. According to tradition, Constantius II inaugurated a large church next to the site of the imperial […]

February 23 1954 – Dr. Jonas Salk’s polio vaccine is administered for the first time

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February 23 1954 – Dr. Jonas Salk’s polio vaccine is administered for the first timeRate this post On February 23, 1954, Dr. Jonas Salk’s polio vaccine was administered to the children from the Arsenal Elementary School in Pittsburgh, USA, kicking off a trial run of mass inoculations across the nation. By March that year newspapers reported the first major success in polio vaccination reported in history. For many centuries Poliomyelitis or Polio had plagued mankind. Records of the disease exist from as far back as 1400 BC. It is a viral infection that affects the central nervous system, nerves, spine leaving the patient’s muscles weak and causing paralysis or even […]