Celtic Zodiac Bull (April 15th – May 12th). This zodiac pendant features a magnificent Celtic bull, unyielding as the Celtic rock upon which it stands. Stubborn, strong, loyal, trustworthy, caring and dependable are people born under this Celtic zodiac sign. Those who are tied to the Celtic bull tend to be the rock of their social circle, providing a solid shoulder to lean on. They exhibit unwavering loyalty to a select few they believe deserving of such. Bull’s remain steadfast even as everything around them crumbles, but they favour order and structure over chaos and change.