RANDOM NUMBERS?

Who knows now what 1753 will bring?
A blindfold masks the clairvoyant's eye.

But it all began with 1450, or was it barely 1449?
Then 1551 - twin snakes collide - the perfect mirrored image,
And less than 11 moons of unblemished time.
Then the five fell reluctantly away -
When the cuspid-horned ram smashed the mirror
In a hailstorm of fire.
Unwillingly it became 1651.
That perfect symmetry - lost for ever -
Never to return.
The earthbound bull charged the sheep -
Several weeks later - kicking and bellowing -
Painfully transforming to 1652.

But 1854 could bring the dancing on -
When the unfettered serpents at last entwine.

A/N: Well, I said it was obscure! Anyone know what it all means?