Aries is known as the Ram for those born March 21st through April 20th. This is an approximation because of the irregular rotation of the earth and therefore not every year will Aries begin exactly on the 21st or even end on the 20th.
When I think of Aries; what comes to mind is a very independent, go-getter personality. A person who is filled with adventure and courage and lots of vitality and often sports minded but also there can be this focus on their self-importance. Now all signs like all people fall between being very shy or introverted to very dramatic or extroverted. So naturally the more immature, extroverted Aries is going to be the king of selfishness with the ego the size of Alaska. But even with those quiet, and more mature Aries you will see a streak of wanting to be left alone so they can do their own thing, no matter how subtle or charming their personality may be.
The ram is adventurous, ambitious, impulsive, enthusiastic and full of energy. Aries is a pioneer, open to new ideas and a lover of freedom. You welcome challenges and will not be diverted from your purpose except by your own impatience, which surfaces fast when you don't get quick results.
Check out my book “Seasons of Astrology” and learn how each of the signs developed their personalities