One idea for a Christmas gift for your friend who enjoys family history research could be a personalized family tree chart. There are many online services that can help create custom family trees based on your friend's research. Alternatively, you could create your own family history book, taking all of the information your friend has discovered and compiling it into a beautiful keepsake. Another idea might be to gift them a subscription to a genealogy research website or enroll them in an online genealogy course. Finally, consider getting them a DNA kit from one of the popular companies so they can dive deeper into their heritage.
Or you can get her/him a star map with an important date you share.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.