What did Dutch teenager Laura Dekker become the youngest person to achieve in 2012?

Laura Dekker (born 20 September 1995) is a Dutch sailor. In 2009, she announced her plan to become the youngest person to circumnavigate the globe single-handed. A Dutch court stepped in, due to the objections of the local authorities, and prevented Dekker from departing while under shared custody of both her parents. In July 2010, a Dutch family court ended this custody arrangement.

The record breaking attempt finally began on 21 August 2010. Dekker successfully completed the solo circumnavigation using a French-built 12.3-metre (40 ft) two-masted Jeanneau Gin Fizz ketch, which Laura named Guppy. Dekker arrived in Simpson Bay on Sint Maarten on 21 January 2012 at approximately 3 pm local time after a non-stop journey of 5,600 nautical miles. She completed her full circumnavigation of the world, at the age of 16 years and 123 days.