Twenty-two years ago from today, May 20, 2003, there are no widely noted major historical events specifically recorded in the provided search results. However, a significant event close to this timeframe and often remembered around this period is the September 11, 2001 terrorist attacks in the United States, which occurred almost 22 years ago and remain a pivotal moment in recent history

. For May 20 in general history, notable events on this day include:

• In 2002, East Timor officially became independent

• In 2006, the Three Gorges Dam, the world's largest hydroelectric power station by installed capacity, was officially opened

• In 1862, U.S. President Abraham Lincoln signed the Homestead Act

• Other historical events on May 20 include the birth of notable figures like Cher (1946) and the first prisoners arriving at Auschwitz concentration camp in 1940

If you are asking specifically about May 20, 2003, no major event is highlighted in the search results. For other significant events around 22 years ago, the September 11 attacks in 2001 are the most momentous and remembered events from that period