84 year cycle
Who was it who sang "freedom's just another name for nothing left to lose?" Another name for Uranus is the planet of Elvis, because this planet leaves us all shook up.
"Discovered" in 1791, Uranus represents your personal as well as societal freedom. Uranus rules Aquarius, and, in an interesting note, Uranus is oblique in its axial tilt and rotation around the Sun. Earth has north and south poles in pretty normal places; the poles of Uranus go everywhere. Occasionally, they point at the sun. It's a different planet, all right.
Uranus indicates your originality of thought and expression. Since Uranus takes about seven years to transit one sign, all individuals born in that period will be under the same influence. Since it is approximately 84 years between its transit in one sign to the next, the groups of people with Uranus in the same sign are separated by several generations. The personal implications of Uranus in your life depend more on its house position and its aspects with other planets in your natal chart.