UnScramble this Word: n i l d e d u g?

Questions

What was the name of the first synthetic plastic made in 1908?

In what year was the CD-ROM invented?

A 300,000 pound wedding dress made of platinum was once exhibited and in the instructions from the designer was a warning, what was it?

Who experimented with the idea of contact lenses?

In what year was the telephone invented by Alexander Graham Bell?