Mark Twain was an American writer, humorist, entrepreneur, publisher, and lecturer born on this day in 1835.

Did you know that:

• Henri Ernest Baillon, a French botanist who wrote “The History of Plants”, was born on this day in 1827
• John Mason patented the screw neck bottle called the Mason Jar on this day in 1858
• Vladimir K. Zworykin received a patent on the iconoscope TV system on this day in 1931