When Is National Sourdough Day?


National Sourdough Day is on the 1st of April with 22 tweets.

More on Sourdough Day below.



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About Sourdough Day

Is It Sourdough Day Today?

It's Sourdough day on the 1st of April.

Sourdough Day' is by our calculation on: April the 1st. The first time we detected Sourdough Day was the 1st of April 2015 and the most recent detection of references to Sourdough Day was 1 year, 8 months ago.

We're now tracking the sentiment around every mention of Sourdough day to show how people feel about Sourdough. See if people like Sourdough here.
We're detecting how Sourdough affects other things more widely than just being a celebrated day. See how Sourdough affects company share prices.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 1st of April. In total we detected 91 total unique days being shared such as Prom Day which had 448 people talking about it, or Law Enforcement Appreciation Day having 407 tweets. A random sample of which are shown below.


National days on the 1st of April

National Sourdough Day, on the 1st of April

How Is The Date For Sourdough Day Calculated?

The day shown for 'National Sourdough Day' is based off how much chitter-chatter and buzz there was on April 1, 2016 across social media making references to 'Sourdough Day'. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day, including others such as: Walking, Walk To Work or Sourdough Bread Day. This crowdsourcing of data method to assess the National Sourdough Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!


I'd Like To Promote National Sourdough Day

We've put together the following resources full of nifty tips on how to increase the reach of Sourdough Day. The resources include: graphs, badges, and resources on what steps to take to boost Sourdough Day's visibility.

Get The Badge

National Sourdough Day

It's Sourdough Day
On April 1st

Can I Register Sourdough Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Sourdough day". We only aim to programatically reflect what 'National Day' it is based of what The Internet Says It Is. We believe this is much more fun as it reflects the nature of how the most amusing / interesting national days are often created organically and grow based off popular social trends and sharing, as such we don't add new days to our database unless they are organically observed on social media.


Is it National Sourdough Day Everywhere?

Yes? No.. Sort of | Maybe ¯\_(ツ)_/¯

What's really intersting is how whilst some National Days like National Daughters Day are seemingly celebrated internationally irrespective of geography, some very popular days (That often become the No. 1 National Day on our homepage) are in fact locally very specific and are offical holidays celebrated on a Country's national calendar. Take National Rambutan Day for instance, Rambutan is a popular Souteast Asian fruit and not seen so much in the UK, Europe or the USA. Some regionally specific trends subsequently become immensely popular internationally and worldwide, partly fuelled by widely shared 'National Days', National Pabebe Wave Day being one such example.

teenagers sharing national days on social media

Hang On, It Was National Sourdough Day Already This Year..!?

Yes, this is strangely enough entirely possible. The date shown for National Sourdough Day can change, if for instance several hundred people tweeted about Sourdough Day in early April, then in May a few thousand people tweeted about Sourdough day, then the date shown for National Sourdough Day, could come up twice :D

We have also detected mentions of Sourdough day on;



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For people who wish to promote National Sourdough Day, we've put together the following resources.
See also: How does Sourdough affect the share price of Apple, Facebook, Microsoft?
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