At the turn of the 20th century; the vast majority of Siamese were rice farmers who lived and worked along waterways. A perfect climate; fertile soil and an excellent irrigation system lent to some farmers enjoying three rice harvests a year. Farmers were also able to grow maize; corn; wheat and barley. Other crops include beans; peas; garlic; cauliflower; melons; pumpkin; cabbage; lettuce; radishes; tomatoes; mustard seed; mangoes; oranges; sugar cane; papaya; sago; opium poppies; many spices; coffee; tea; cotton and tobacco.