Greece Outside In: Why, if the ancient Greeks had die-cut coins, did we take so long to invent the printing press?

Readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific concepts We know that in ancient Rome and Greece they had die-stamped coins. Why then did it take until the 15th century for mankind to invent the printing press? _Kris Jones, London, W14_ Continue reading...