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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

COMMENT: The former health secretary Sajid Javid says we should charge £20 for GP appointments and replace the health service with a Dutch-style social insurance system – just as Wes Streeting warns the doctors that they are paving the way for Nigel Farage to do just that, writes John Rentoul

Four bags of money hidden around 1640 and worth "much more than a craftsman could earn in a year" have been found inside a statue at a Gothic church in Germany.

Ever wondered why we eat mince pies and turkey at Christmas? And give each other gifts?

Kang Youwei (1858–1927) has had a profound influence on modern-day China. He imagined a future society in which war had ended and nation-states had disappeared, to be replaced by a single socialist and democratic world state. His work popularised the idea of historical progress in China, inspired the founder of…

It’s got billionaires, world champions and director Ridley Scott’s company on board. But would an athletics competition where taking drugs is encouraged put the honesty back in sport – or cause rifts, risks and addictions?

How religious "freedom" has been twisted into an all-out attack on critical thinking and the rule of law

I don’t want to be ‘McMindful’ but rather extend myself beyond my ‘self’ and contribute to the wellness of all beings

From the Baltic to Bavaria, via Berlin, our tipsters enjoy epic scenery and architecture, culture and steins of fabulous German beer