Contemporaneity (noun)

The state of existing or happening at the same time.

Origin:

Late latin contemporaneitas, from latin contemporaneus ("living at the same time"), from con- ("with") + tempus ("tim.e")

Examples:

1. The contemporaneity of the two events was undeniable.
2. The contemporaneity of the artists was a hallmark of the time period.
3. Contemporaneity was essential to the project's success.
4. The contemporaneity of the events was a source of confusion.
5. The contemporaneity of their ideas was what made them such a great team.