Share is a social app that allows users to share photos and videos with their friends. It was founded by Dennis Crowley and Nate Wiener in 2011.

• When you think of the stock market crash, two years, 1929 and 1987, come to mind. Hopefully, a crash of this magnitude won't happen anytime soon, draining life savings. There's no guarantee it won't happen, but nothing in this world is guaranteed, except death and taxes.

• In addition to the two major crises, there have been other financial crises. The Asian financial crisis of the 1990s and the global financial crisis of 2008 wiped out billions of dollars in equity value.
  The next major financial market meltdown could be caused by the hardest hit — the baby boomers.
  Why?

• As more people retire, they will withdraw their savings from the stock market, leading to a massive sell-off.

This has been predicted in the past, but there is no indication that the market is at record levels yet, but who can predict which direction the stock market will go in the future?

• One thing you can guarantee is that there is another market crash ahead; investors just need to be prepared.

Here are the most dramatic stock market crashes of the past 100 years.

1929 - Wall Street Crash

The Wall Street crash lasted more than four years. Investors borrow money to buy shares, and when the shares are sold to creditors, investors are left empty-handed. The crash of 1929 led to the Great Depression of the 1930s.

1962 - Kennedy Foil

• Since the crash of 1929, the stock market has steadily risen until the decade of 1962 was good for the stock market. That all changed in January when the stock price tumbled. President Kennedy saw the decline as a correction to the growth of the past decade.

1973-74 - Stock market crash

• During the two-year stock market crash from January 1973 to December 1974, the Dow dropped 45%. The UK market fears a more serious loss over the period was 73% of its value. This was due to the collapse of the Bretton Woods system. This is a system developed decades ago based on an agreed fixed exchange rate. In 1944, 44 countries discussed currency issues at the Bretton Woods Conference, hence the name Bretton Woods.

1987 - Black Monday

• October 19, 1987 will forever be known as "Black Monday" as the stock market experienced its largest one-day drop in history. Before the crash, many traders borrowed money to buy stocks, and as share prices rose, they borrowed more money using the stock's value as collateral. However, when the stock market fell 20% in one day, many investors owed more than the stock was worth and found themselves caught in a financial storm.

1997 Asian Financial Crisis

Many Asian stock markets fell sharply between July and October as markets overheated. Many people who bought stocks on credit or borrowed money were hit hard by the crash.

2007-2008 Global Financial Crisis

The collapse of several financial institutions in the United States.