Today, the majority of people believe it is right to kill animals for sandwiches

30 years ago, the majority of people believed it was right to deny same-sex couples the right to marry.

50 years ago, the majority of people believed it was right to use corporal punishment on children in schools.

100 years ago, the majority of people believed it was right to deny women the right to vote.

200 years ago, the majority of people believed it was right to practice slavery.

400 years ago, the majority of people believed it was right to burn individuals accused of "witchcraft".

500 years ago, the majority of people believed it was right to punish heresy with death.