Elvis Presley was born on 8 January 1935.
1940-57 has five divisions on the timeline. 8/5 = 1.6 years each
1956-57 was his Sagittarius phase. Sagittarius is the sign of good fortune and prosperity. Hence he became a movie star during that time.
You can also see he gets married in the Pisces phase of his life, since Pisces has to do with emotions and sex. Also, his natal moon is in Pisces. Moon is the planet of relationships and marriage.
In 1973, Elvis was admitted to the hospital for pneumonia, pleurisy, hepatitis, and an enlarged colon, during his Taurus phase. Taurus is about food and overindulgence of the senses. Towards the latter part of Taurus lies the star Algol (from the arabic word al-ghoul, or body-eating spirit, or demon), which is considered the most evil star in the universe. Here is found excessive gluttony and overindulgence of the senses. It is a well-known fact that Elvis was overweight in his later years.
He dies in the Gemini phase of his life from overstimulation due to drugs, alcohol, etc. Also note that the sign Gemini squares both his ascendant and midheaven in his natal chart.