This is a horrible book of foul facts - Terry Deary

This is a Horrible Book of Foul Facts serves up all the dreadful
details of horrible history you'll ever need to know - from rotten
Roman graffiti to terrible teacher tortures and rude royal nicknames,
the foul facts are all inside. Want to know: the crushing
details about execution by elephant? How to soften your skin Georgian-style,
using the skins of puppies? Whose idea of a top treat
was mashed deer tongues? Whether you're desperate to discover which
famous rulers were left-handed, raring to read about the top
ten dogs of all time, or just aching to ask about assassinating apes,
then this book is for you. History has never been so horrible!