There are advantages and disadvantages to being a relatively new country with a very long history. This is Lithuania. The records go back nearly 1000 years and even the castle in my backyard was first recorded in 1361, but for all intents and purposes, the country came into being in the modern age 22 years ago, when the Russians were finally driven out and Lithuanians could, at long last, rule themselves again.
So how do you celebrate your new/old independence? You have a holiday! Or several holidays. But today is a pretty cool one. July 6th is the supposed coronation day of Mindaugas, the one and only king of Lithuania! It was 760 years ago today that he was crowned and so today, since 1992, has been Lithuanian Statehood Day, a federal holiday!
Getting the Hang of Thursdays 
The new/old thing still gets to me sometimes. I live amongst buildings that are less than 100 years old, and in most cases less than 25 years old, but pass by a Spanish Mission that is 300 years old. And when we went to the UK there were buildings 1000 years old.