Fruit cake became a universal offering for Christmas when it was discovered that plums and cherries could be preserved for a long time by soaking it in large solutions of sugar, which was cheap at the time.
The white stripes on the cherished candy canes represent the purity of Jesus Christ, the three red stripes stand for the Father, the Son, and the Holy Spirit, and the red stripe represents Jesus Christ's blood.
Christmas trees symbolise eternal life, and were introduced in England when Queen Victoria married Prince Albert, who was a German.
Germans used to host a procession on Feast Day of Adam and Eve carrying "paradise trees" with apples representing the forbidden fruit.
Santa's reindeers were introduced in Clement Moore's 1822 poem 'A Visit From Saint Nicholas' now called 'Twas the Night Before Christmas'.