The Earth Has Seen Six Ages
Astrologers of the world community generally agree that mankind has experienced six separate "ages," dating from the first appearance of humanity on earth. When each period starts and ends is slightly imprecise because of the huge time frame involved. (Over 25 thousand years, and there is always a plus or minus tolerance to any mathematical curve.) Also the ages overlap slightly because, in fact, some parts of the zodiac also overlap in the heavens. The signs of the zodiac are of unequal sizes, too, with some signs taking up more real estate in the heavens than others.
The discovery of Uranus around March 13th 1781 must have been somewhat of a shock to the existing astronomical and astrological fraternity of the day. Up to that point only the Sun, Moon, Mercury, Venus, Mars, Jupiter and Saturn had been acknowledged. Its discovery and subsequent acceptance by the scientific community coincided with an incredible revolution in technology and science. Having an aerial as its glyph or symbol is a testimony to the progressive things Uranus stands for.
- http://www.astrology.com.au/astrology/the-planets/uranus.html