Each era has left its distinctive mark.
A mark is left by each era that is distinctive.
Some eras are very similar and did not leave their own distinctive mark.
Two friends are playing on a couch
I've got something different.
Only fire drills are used to practice building evacuations.
Shiva is not pelted with pats of butter by visitors.
A child is playing pretend with his teddy bear.
There are some guys here who don't like playing with me.