Siblings
Holidays
Siblings Day, Twins Day, Middle Child Day. Days for the people who knew you before anyone else did.
May
2 holidays
Brothers and Sisters Day
The men in a decades-long Harvard study who reported a poor relationship with a sibling at 18 or 19 were likelier to face major depression by 50. May 2 asks you to reach out before the silence sets.

National Brother’s Day
Brothers drift, and interview studies name one culprit: boys get measured against each other, by parents and by the world, more than any other sibling pair. May 24 exists to interrupt that.
August
2 holidays
National Sisters Day
Show your sister some love this National Sisters Day - take the time to bond and make memories that will last a lifetime!

National Middle Child Day
Celebrate National Middle Child Day with your siblings - show them extra love and attention to make their day extra special!
December
2 holidays
National Twin Day
Read the DNA of 381 identical twin pairs, as deCODE genetics did, and the average pair turns out to differ by 5.2 early-development mutations. December 18 is the US date for two people who were never quite copies.

National Twins Day
Double the fun on National Twins Day! Celebrate the unique bond of twinship with special activities and shared memories.