Bareback bronc riding began to develop as a professional rodeo sporting event around 1900. The riding equipment used during that era varied. In some cases, the rider simply held onto the horse's mane, called a mane-hold. Others held a loose or twisted rope tied around the horse's girth, and other methods involved using multiple handhold leather riggings based on a surcingle. In the early 1920s, when the old rodeo rules allowing two handed riding were being phased out and replaced with the newer rule of riding with one hand in the rigging and one hand in the air, Earl Bascom invented, designed and made rodeo's first one-hand bareback rigging. The original one-handed rigging was made by Bascom from a section of rubber belting discarded from a threshing machine, with the entire rigging—the handhold and the body—all made as one piece. The handhold was folded back and riveted to the main body of the rigging, with a 'D' ring riveted on each side for tying the latigos. This rigging was first used at the Raymond Stampede in Alberta, Canada in July 1924. Bascom then refined the design, making his second one-handhold rigging out of leather and rawhide. Sole leather was used for the rigging body. Strips of leather, with rawhide sewed between, were used for the handhold with sheepskin glued under the handholds to protect the knuckles; this arrangement became known as "Bascom's Rigging". Honored in several Halls of Fame, Bascom is now known as the "Father of the Modern-day Bareback Rigging". Variations of Bascom's rigging are still used in rodeos today.