The first age of consent was set in England at 12 years-old, in the 13th century

Just before the 20th century began it was at 13 years-old

In America, just before the 20th century began it was at 10 years-old in over 30 States, until the mid 1960s, the legal age of consent in Delaware was 7

Professor of history Margaret Wade Labarge

“It needs to be remembered that many Medieval widows were not old, Important heiresses were often married between the ages of 5 and 10 and might find themselves widowed while still in their teens.”

Fallacy of presentism

The practice of these marriages are often customary, just because it is no longer customary in the U.K., does not mean those who practice these marriages in other countries are immoral

Homosexuality was considered an abomination and taboo just a century ago. Now it's endorsed and promoted. That does not mean that those who hold an opposing view are backwardly, or ignorant because they consider a penis entering someone's place of defecation to be an abomination