First, there were a lot of cool people born on March 10, including:
Character actor Sam Jaffe appeared in such films as Lost Horizon, Gunga Din, The Asphalt Jungle, and The Day the Earth Stood Still.
This is one of my favourite people with whom I share my birthday, Jon Hamm. He plays Don Draper on my favourite show currently on the air, Mad Men. Aside from sharing a birthday and being devilishly handsome, Mr. Hamm and I have a few other things in common. Namely, we were both born in Missouri. In fact, he even lived in Columbia while attending the University of Missouri.
Olivia Wilde played Dr. Remy "Thirteen" Hadley on House and has appeared in such films as Tron: Legacy, Cowboys & Aliens, and Her. I've interacted with her on a few social networks over the years and she seems really nice.
Dean Torrence of Jan & Dean is probably the most famous music star born on March 10. Here's Jan & Dean's song "Dead Man's Curve"
Last but not least, one of my favourite people in the whole wide world and a dear friend, actress Scarlett O'Neil shares my birthday!
There were a lot more famous people born on March 10, but I haven't room here to list them all. There were a few important, pop culture related events that happened today, all of them music related except for one.
It was today in 1958 that Big Records released the second single (after "Hey, Schoolgirl"), "Our Song", by a duo called Tom and Jerry. They'd later become famous by their given surnames, Simon & Garfunkel.
It was also today in 1964 that Simon & Garfunkel recorded the original, acoustic version of "Sounds of Silence"
And it was today in 1973 that my favourite Pink Floyd album, Dark Side of the Moon, was released. Here from that album is "Brain Damage"/"Eclipse"
According to Marvel.Com, it was on March 10 1963 that Tales of Suspense #39 was published. It is significant as the first appearance of Iron Man (which sort of makes Tony Stark my birthday twin).
Anyhow, it would appear that my assumptions when I was younger were wrong. A lot did happen on March 10! I fully recommend researching who was born and what happened on your birthday. You might be surprised at what did happen.