Upgrading your gas boiler to an EDF air source heat pump could save on emissions and cash in the future.

You could cut your carbon footprint by about 12% a year.

That's similar to a return flight from London to Perth.

Plus, we'll arrange your £5,000 boiler upgrade grant over 22 years installation experience.

EDF, help in Britain achieve net zero.

Based on average household with an aerated gas boiler,

ONS reports BA carbon calculator and energy saving trust data grant subject to eligibility details at edfnity.com.

They were some of the most powerful men who've ever lived.

They waged war, forged peace, and altered the fates of billions of people.

And yet, they were just as human, just as flawed as you and me.

They were the presidents of the United States, and they are the subjects of the history podcast, this American president.

In each episode of this American president, we explore how flawed men have managed this awesome responsibility.

To listen now, go to pathanonpodcast.com or search this American president on your favorite podcast platform.

Welcome to the history unplugged podcast.

The unscripted show that celebrates unsung heroes,

myth busts historical lies, and rediscoveres the forgotten stories that changed our world.

I'm your host, Scott Rank.

Hi everyone, welcome to the history unplugged podcast.

This is one of those in-between episodes where I answer any question that you can throw at me.

Today's question comes from August Bergscheyer.

August asked this,

is it true that the person who invented the guillotine was himself guillotine?

...