can i activet 2 Wonders at the same time ?

hey guys I just want to know if I can activate 2 wonders at the same time like poseidon and hephaistos ?

and if i cant because they have both a time for the activation , how about hephaistos is activated and i use colossus ??

thank you

Quote from Draxo

Yes, you can activate two different miracles at the same time.

so i can get both effects at the the same time ?? that's very nice