In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Medication errors are three times higher among children and infants than with adults.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
An albatross chick at Northwest Hawaiian Islands National Monument, Midway Atoll.