By Sean Keach, Digital Technology and Science Editor - The Sun
A TWITTER firestorm has been sparked by International Men's Day becoming a trending topic on the social media site – despite today being the official International Women's Day.
The website has been flooded with angry tweets from men asking why there isn't an International Men's Day, even though it's existed for decades.
March 8 is reserved each year to celebrate the successes of women around the world, and to help promote gender equality.
But there's also an International Men's Day, which falls later in the year – on November 19.
Unsurprisingly, there are lots of reports – which The Sun has verified – that show International Men's Day trending on Twitter in the UK.
That's led to a flurry of complaints about "tedious and boring" men who keep asking when International Men's Day is.
Some Twitter users even queried whether men even need a dedicated day:
While other guys seem genuinely confused about whether their own version of International Women's Day exists:
And others have questioned whether the bulk of tweets are people asking about International Men's Day – or if it's trending thanks to people complaining about the whole fiasco:
It's also worth checking out Twitter legend Richard Herring, who spends every International Women's Day going through and quote-tweeting people who ask when International Men's Day is with the date.
The first International Women's Day was actually held back in 1909, but only started being held on March 8 in 1910.
When women gained suffrage in Soviet Russia in 1917, March 8 became a national holiday there.
The day was generally only celebrated by communist countries for decades, but was eventually adopted by the United Nations in 1975.
International Men's Day was first held in 1992, and is now celebrated in over 70 countries across the world.
Did you realise there was an International Men's Day? Do you think men need a special day? Let us know in the comments.