• After Henry’s death, his younger brother Charles becomes heir apparent and is crowned King Charles I in 1625.
• Charles I is unpopular with the English Puritans for a number of reasons, including his marriage to a Catholic. Many of them emigrate to America, including Mary Folger in 1635.
• Folger settles in Massachusetts and her grandson, Benjamin Franklin, is born there in 1706.
• Franklin travels to Philadelphia in 1722, and finds work with Samuel Keimer, founder of the Pennsylvania Gazette. Franklin purchases the business from Keimer in 1729.
• Under Franklin, the Gazette becomes one of the most popular newspapers in America. In 1821, it is rebranded as the Saturday Evening Post.
• In 1927, the Post prints a cartoon from 23 year old illustrator Theodor Geisel. Encouraged by this success, Geisel moves to New York City that same year, and becomes a published cartoonist.
• Geisel takes the pen name of Dr Seuss and publishes the children’s book, The Lorax, in 1971.
• The Lorax is adapted into a feature film in 2012, gains a following on tumblr, and we all know what transpires.
  

how do people figure out things like this

It’s easy when you work backwards start with Seuss then look for information that could be funny