Here’s a look at some interesting events that took place on this day in history:

1775: The United States Marine Corps is founded (more info)

1871: Henry Morton Stanley locates missing explorer and missionary Dr. David Livingstone, famously greeting him with the words, "Dr. Livingstone, I presume?" (more info)

1951: Direct-dial coast-to-coast telephone service begins in the United States (more info)

1969: 'Sesame Street,' a pioneering TV show that would go on to teach generations of kids the alphabet and how to count, makes its broadcast debut (more info)

1970: For the first time in five years, an entire week ends with no reports of American combat fatalities in Southeast Asia (more info)