Many Indian traders, merchants, and missionaries travelled to Southeast Asia (where Indianized kingdoms were established) and often took local wives from the region. The Romani people ("Gypsies") who have origins in the Indian subcontinent travelled westwards and also took local wives in Central Asia, the Middle East, and Europe. Genetic studies show that the majority of Romani males carry large frequencies of particular Y chromosomes (inherited paternally) that otherwise exist only in populations from South Asia, in addition to nearly a third of Romani females carrying particular mitochondrial DNA (inherited maternally) that is rare outside South Asia. Around 800, a ship carrying Persian Jews crashed in India. They settled in different parts of India and befriended and traded with the local Indian population. Intermarriage occurred, and to this day the Indian Jews physically resemble their surrounding Indian populations due to intermarriage.