Carrying his Bride over the threshold dates back to when it was thought a new Bride was vulnerable to evil spirits and bad luck – he would carry her over the threshold so leaving the evil spirits and bad luck on the outside. And pretty much to stop her turning into an evil, scolding shrew due to the spirits taking over her body while she was between girlhood and womanhood.
.The ‘Best’ Man
In the times when a Groom would kidnap his Bride, incurring the wrath of her father and family, the Best Man (the Groom’s most trusted friend) was there to help in any fight.
When it came to the ceremony, he was there just in case the father or family decided to take the Bride back
Tying the Knot
The phrase ‘tie the knot’ comes from the Romans – the bride wore a girdle with lots of knots, which the groom had the fun of untying. Also from the placing and binding of cords on the hands during a handfasting ceremony.