Short answers, pulled from the story.
Archaeologists uncovered potato remains at the coastal site of Ancon in central Peru, dating back to 2500 BC. These ancient tubers provide the earliest verified evidence of human cultivation.
Genetic studies indicate that all modern potatoes trace their lineage to a single origin point near Lake Titicaca in southern Peru and northwestern Bolivia. Pre-Columbian farmers domesticated this crop approximately 7,000 to 10,000 years ago from a species within the S. brevicaule complex.
Late blight fungus known as Phytophthora infestans devastated western Ireland in 1845 causing the Great Irish Famine. A lack of genetic diversity left early crops vulnerable to disease outbreaks during this period.
Scientists have identified more than 5,000 distinct potato varieties existing globally with 3,000 found solely within the Andes region. The International Potato Center in Lima holds 4,870 types of germplasm including traditional landrace cultivars.
Raw potatoes contain toxic glycoalkaloids such as solanine which concentrate heavily in aerial parts of the plant. Exposure to light causes tubers to turn green and increases toxin levels beyond safe limits.