riddle - End of every race, Who am I?

What is the beginning of eternity,
The end of time and space,
The beginning of every end,
And the end of every race?

Answer

I think the solution is the

letter E

What is the beginning of eternity

Eternity

The end of time and space

timE and spacE

The beginning of every end,

End

And the end of every race.

racE