Here are a few options for a social media post, depending on the platform and tone you are looking for.

to increase city morale. High city morale is critical because newly deployed units inherit the morale level of their home city. Balance Trends: Balance Report

The v1.0.10 update brings several high-impact "Grand" scale functionalities and quality-of-life improvements:

Grand Unification: A new late-game functionality that streamlines the process of finishing a campaign once your dominance is established.