Unlike many other ancient systems, Roman numerals are still in use today, albeit in a limited capacity. Let's explore how we ...

Some elements, particularly the transition metals, do not always have the same valency in their different compounds. The valency of these elements is usually given in roman numerals inside brackets.

But there’s another movie mystery at the other end of your favourite films, too. If you look closely after the credits have rolled, you’ll see that the copyright credit is often written in Roman ...

Arabic numerals are introduced to Europe in the eighth and ninth centuries A.D. Roman numerals remain in use in some parts of Europe until the seventeenth century. The Arabic system introduced the ...