In Ireland, an evergreen-type Christmas tree is a relatively new phenomenon.
Years ago, families went out searching for holly bushes and ivy to decorate their mantelpiece and other parts of the house.
Finding a holly bush with lots of berries was thought to bring good luck in the coming year.
Germany is credited with starting the Christmas tree tradition (as we now recognise it) in the 16th Century,
when devout Christians brought decorated trees into their homes. These were first decorated with gingerbread and gold covered apples.
In Victorian times, the tree would have been decorated with candles to represent stars.
These were then replaced by Christmas lights after electricity was invented in 1831.
At first, a figure of the Baby Jesus was put on the top of the tree. Over time it changed to an angel
that told the shepherds about Jesus, or a star like the Wise Men saw.
The first Christmas Trees came to Britain sometime in the 1830s. They became very popular in 1841,
when Prince Albert (Queen Victoria's German husband) had a Christmas Tree set up in Windsor Castle.
In 1848, a drawing of "The Queen's Christmas tree at Windsor Castle" was published in the Illustrated London News.
The publication of the drawing helped Christmas Trees become popular in the UK and USA.
One of the most famous is the tree in Trafalgar Square in London, England,
which is given to the UK by Norway every year as a 'thank you' present for the help the UK gave Norway in World War II.