Perhaps the best known bush band internationally, albeit in their later years with the influence of English folk rock bands like Fairport Convention and Steeleye Span, was the Bushwackers (spelt without the "h" as in the earlier Bushwhackers Band of the 1950s), who formed in Melbourne and were active from the early 1970s to 1984. The "Wackers," as they are known by their fans, toured around the world and with their larrikin, outgoing style, song books, dance instruction books and records, contributed markedly to the spread of bush music and dancing, especially in Australia. Their style was infused with Celtic music (i.e. reels and jigs) to a greater extent than previous bush bands, and they used an electric bass guitar in place of the more traditional bush bass. The period leading up to and following Australia's Bicentenary, 1988, saw a marked resurgence in bush music and bush dances that lasted for many years.