1) Cows have best friends and can become stressed if they are separated.

2) 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.

3) The NBA (National Basketball Association) is widely regarded as one of the most popular and competitive professional basketball leagues in the world.

4) 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.