The potato is a starchy, tuberous crop from the perennial Solanum tuberosum of the Solanaceae family (also known as the nightshades). The word may refer to the plant itself as well as the edible tuber. In the region of the Andes, there are some other closely related cultivated potato species. Potatoes were introduced outside the Andes region four centuries ago, and have become an integral part of much of the world's cuisine. It is the world's fourth-largest food crop, following rice, wheat and maize. Long-term storage of potatoes requires specialised care in cold warehouses.

Wild potato species occur throughout the Americas, from the United States to Uruguay. The potato was originally believed to have been domesticated independently in multiple locations, but later genetic testing of the wide variety of cultivars and wild species proved a single origin for potatoes in the area of present-day southern Peru and extreme northwestern Bolivia (from a species in the Solanum brevicaule complex), where they were domesticated 7,000–10,000 years ago. Following centuries of selective breeding, there are now over a thousand different types of potatoes. Of these subspecies, a variety that at one point grew in the Chiloé Archipelago (the potato's south-central Chilean sub-center of origin) left its germplasm on over 99% of the cultivated potatoes worldwide.

Liu Jia (Chinese: 刘佳; born 16 February 1982 in Beijing, China) is a female Chinese-born table tennis player who now represents Austria.

From 1992 to 1995 Liu attended Shischa Sporting High School in Beijing. Afterwards she became a member of professional club Shian Nuntan, where she played with Zhang Yining. Despite Liu's successes as a Cadet and Junior, competition within the Chinese team was strong and prospects for a future international career were dim. Instead of following a call to Japan, Liu travelled to Austria when the opportunity arose to play for Austrian team Linz AG Froschberg.

She arrived in March 1997 without speaking either German or English, but quickly learned German within the year that she settled in Austria. She won the 1st International Austrian Youth Championships soon after her arrival. On February 16, 1998, her sixteenth birthday, she became an Austrian citizen and a member of the Austrian table tennis squad.

Liu continued her success on youth level by taking Gold in the Singles, Doubles and Mixed competition at the 1998 European Youth Championships in Norcia. In 1999, she once again claimed the Singles and Mixed titles in Frydek-Mistek.