In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
Kissing an infection-free partner is good for your teeth!
141