Used to

In the 1700's, pineapples used to be a status symbol of wealth.

The bacteria used to make yogurt are known as yogurt cultures.

There used to be ostriches in Middle East in the 20th century and, further back, also in Asia.

Computers are used to control large and small machines which in the past were controlled by humans.

Nowadays this technique is still practiced in Bangladesh, where trained otters are used to chase fish into fishing nets.

There's a surprisingly large amount of names used to describe otters.

They were first used to deal with feared terrorist and military-in-chief Mohammed Atef in 2001.

Experts used to believe that horses were completely color-blind, although this has now been disproven.

The eagle featured on US currency was modeled on a real bald eagle named Peter who used to live on top of the US Mint.

Although eagles can live up to 70 years, this isn't always the case and they normally become weaker towards the end of their lives, unable to hunt as they used to.

Haptic feedback might also be used to help make it seem more real.

They used to be prepared for the Chinese ancestor worship rituals as offerings to the spirits of the deceased.

The Library of Congress used to archive all tweets.

The "Fail Whale" was the name given to the page which used to show on the screen when servers had been overloaded.

The symbol has been used to represent Amsterdam since 1505 when Amsterdam was still a little fishing town.

The stripes are used to keep them camouflaged while hunting.

Or, a doughnut depositor can be used to place a circle of liquid dough (batter) into the deep fryer.

Titanium dioxide is used to make powdered donuts whiter.

This would be later used to great effect in the Mona Lisa.

The word firmware is sometimes used to describe a style of software that is made specifically for a particular type of computer or an electronic device and is usually stored on a Flash memory or ROM chip in the computer.

System software is used to start and run computer systems and networks.

Computer programming tools (also known as development software) are used to create application and system software.

In its most general sense, the word earthquake is used to describe any seismic event—whether natural or caused by humans—that generates seismic waves.

Earlier, The basketball used to be brown in color.

A seismograph is a machine that is used to measure the strength and the length of an earthquake.

Bitcoins may sound a bit farcical at first, but it's actually a real currency used to buy real things.

This would be later used to great effect in the Mona Lisa.