Scots take a lot of pride in our country's reputation for inventions and creations.

From penicillin to steam engines, our small nation has made some major contributions to the modern world.

We have been claiming many feats as our own, but doubt has been cast on how Scottish some of them actually are.

The latest creation to have its Scottishness questioned is a certain fizzy orange drink ...

Sorry to break it to you. But that's the case according to some research done in America by a university professor who's originally from East Kilbride.

David Leishman teaches at Grenoble Alpes University in France and discovered the first Iron Brew drink was launched in 1889. This is much earlier than the date the Barr family claims to have come up with their concoction, which is still produced as Irn-Bru today.

Even the strongman image is said to have been brought in by an English firm on the famous cans and bottles of the orange elixir.

In the old American advert for Iron Brew, it is labelled as a "non-alcoholic life renewer".

Next they'll be telling us it isn't even made from girders.

John Logie Baird might have brought colour sets to us in July 1928 ... and 3D technology the following month. But the original accolade belongs to one Philo Farnsworth.

Philo didn't live in a house with electricity until he was 14 but only six years later (in 1927, before Logie Baird) he demonstrated an electric television in San Francisco.

Even then, a Russian by the name of Boris Rosing had been experimenting with the same method as Farnsworth before his American rival had even been born. He just wasn't successful.

It's enough to make you jump out of your seat.

Now, surely, this can't be true. We've got "The Home of Golf" at St Andrews links. The clue's in the title, no?

In the 14th century, the Dutch were playing an early form of the game. Their word "kolf" even translates as "club", the instrument essential to take part.

Around 1457, King James II issued a ban on golf and football on these shores and, after the ban was lifted, we had our own rule book some 300 years later.

This is a tricky one. The man who did invent the modern type of road we're talking about is John Loudon McAdam from Ayrshire. His name is the basis of the term "tarmac".

He moved to America where he built a fortune before returning to Scotland to become a road trustee in his native Ayrshire. But it was not until he was working in Bristol in 1815 that he put his pioneering "macadamisation" process into practice.

So, are macadam roads Scottish because they were invented by a Scot, or English because the first evidence of their creation is in England?

It's an argument you couldn't solve even by going back to the future.