1) The Bank of England, established in 1694, is the central bank of the United Kingdom and one of the oldest central banks in the world.

2) The tongue of a blue whale is so big that about 50 people could stand on it.

3) The first consumer digital video recorder (DVR), the TiVo, was introduced in 1999 and allowed users to record and store television programs for later viewing.

4) Elvis Presley, often referred to as the "King of Rock and Roll," has sold over one billion records worldwide.