Dennis the Menace: UK vs US

there are TWO completely different versions of dennis the menace - one british and one american. the crazy part? both were created independently and debuted on the exact same day in 1951, without either creator knowing the other existed. this is the unbelievable story behind the biggest coincidence in cartoon history. so... which dennis is the real menace? 🎯 2/100:   / bibistheory