› added 2 years ago

501

TIL - Your tonsils can grow back, multiple times during your life

Read more childrensmn.org

via reddit.com

0ww1j TIL that Roman concrete, subject to marine corrosion, has stood for over 2000 years, while modern cement can break down in as few as 50 years. The concrete the Romans used contained volcanic ash and got stronger over time: the ash was slowly replaced with Al-tobermorite, a rare hydrothermal mineral.
VM918 TIL that the high land ownership inequality in the UK is still a consequence of the Norman invasion almost 1,000 years ago, when William the Conqueror made all the land in the country his and then distributed it to his allies
wLkO1 TIL Mushrooms are more closely related to humans than they are to vegetables.
WrJN TIL Leprechauns traditionally wore red, not green. This changed in the 20th century because of Irish stereotypes.
Lk8pP TIL that Ireland has the oldest average age at first marriage of any country. The average Irish citizen gets married for the first time at age 35.