The whole zodiac is composed of 12 signs that add up to 360 degrees, so each sign is 30 degrees and contains three decans of 10 degrees each (via Well + Good). With every sign, decans play a role. A decan is a subdivision of a sign and impacts what rules the sign. The first 10 days of the sign begins what is known as the first decan, so for Tauruses, April holds the first decan.
As first decan, April Tauruses possess the most common Taurus traits, such as loyalty, steadfastness, and pleasure seeking (via Bustle). This is because April Tauruses, as a result of being the first decan, are ruled by Venus exclusively.
One of the mainstays of Tauruses is their stubbornness and their delight in fine things. From delicious meals and extravagant vacations to simply wrapping themselves in cashmere and enjoying the feel of the material on their skin, April Tauruses place an emphasis on experiencing sensory pleasure. They also are highly devoted to those they love and are very committed. Tauruses show love slowly and are very romantic.
