https://youtu.be/8HegwRtbDSU
Spindly trees, rusted gates, crumbling stone, a solitary mourner: these things come to mind when we think of cemeteries.

But not long ago, many burial grounds were lively places, with gardens and crowds of people — and for much of human history, we didn’t bury our dead at all.

How did cemeteries become what they are today?