In his book Da Vinci’s Ghost: Genius, Obsession, and How Leonardo Created the World in His Own Image, historian Toby Lester translates one of Leonardo Da Vinci’s to-do lists. On it includes tasks like “calculate the measurement of Milan and suburbs” and “examine the crossbow of Maestro Ganneto.”

It is no wonder the polymath is often referred to as the genius of them all. 

Below is the original list, along with NPR’s illustrated translation.