“The ancient Egyptians treated some of the sick by eating mouldy bread, and no one understood why.”
“Until the year 1928, five thousand years later, modern science came to discover through the scientist Alexander Fleming that penicillin had a great effect as an antibiotic on bacteria.”
What is the relationship of bread with the subject
“When the bread is left to rot, it produces a fungus called Penicillium, and penicillium is derived from it, the most famous antibiotic used so far to treat some types of bacteria that the Egyptians knew about 5,000 years ago.