I recommend heading over to Richard Herring's Twitter account as soon as you can. The British comedian has taken it upon himself to reply to the inevitable 'Why is there no International Men's Day?' tweets that occur every year on International Women's Day.
Those tweeters are quick to claim martyrdom, but not so quick to check facts.
As Herring points out, there is such a day, on November 19.
On behalf of everyone capable of conducting a quick Google search, thank you Herring!