was the prevailing colour of Finnish horses, making up about 40–50 percent of the breed, and bays, blacks and greys existed in much greater numbers than today: 34 percent were bay, 16 percent black, and the remaining 3 percent were grey, palomino or spotted. Wide blazes and high leg markings were rare, unlike today; bold markings became common only in the 20th century. The change came about through selective breeding. At the turn of the 20th century, when a nationalistic spirit was high, the Finnhorse began to be considered a symbol of Finland, and purebreeding became very popular. In addition, chestnut colour was officially chosen as an official aim for breeding as the "utmost original" colour of the Finnhorse, and named the "Hippos colour" after Hevoskasvatusyhditys Hippos, the name of the recently founded Finnish national horse breeding association that is now Suomen Hippos. Any colours other than chestnut were considered evidence of "foreign" blood, and the goal was to make the Finnhorse an all-chestnut breed. The breeding regulation of 1909 stated that no stallion "with coat of white, grey, palomino or spotted" could be accepted into the stud book. The popularity of bay and black Finnhorses dropped as well, and at least one mare was removed from the stud book solely because of her bay colour. Selective breeding combined with the export of horses in colours popular in neighbouring countries, especially bays into Sweden, and made chestnut the prevailing colour. In the earliest section of the first Finnhorse studbook, 105 of the stallions listed were chestnut and only 8 were bay. There were stallions of other colours as well, but they were not included in the first book. At one point, chestnuts made up more than 96 percent of the breed. Because of the vigorous colour breeding for chestnut in the early 20th century, combined with a genetic bottleneck resulting from the low number of Finnhorses that existed in the 1980s, colours such as grey and cream dilutions were preserved only by a few minor breeders. In the 1980s there were fewer than ten grey and palomino Finnhorses combined. All Finnhorse carriers of the cream gene today descend from a single maternal line, founded by the palomino mare Voikko (literally, "Palomino") who lived in the 1920s. While both cream dilution and black are rare, there are some known smoky blacks in the breed, the first of which was a filly