Insight by History

Welfare policies can weaken family formation because benefits that reward single-parent status or penalize cohabitation create incentives for people to divorce or avoid marriage to secure aid.
Want more like this?
Every card on Korva is an insight someone saved from a podcast or video they loved.
More from @history's Picks
See all →Brewed tea became an artistic medium because the drink's foam provided a temporary surface artists could draw on, turning the beverage itself into a canvas for elaborate images.
Roman marine concrete grew stronger over centuries because seawater dissolves lime in the mix, which reacts with volcanic ash to precipitate interlocking aluminum‑silicate minerals (notably aluminum tobermorite) that fill pores and progressively densify and reinforce the material.
Deliberately starving the countryside functions as political control because forcing people to focus on finding daily food robs them of the cognitive bandwidth and incentives needed to organize or question the regime.