How about surprising her with a language immersion trip for your anniversary? There are many language immersion programs around the world that offer immersive language-learning experiences combined with cultural excursions and activities. You could even choose a destination that you both have always wanted to visit together. Another idea could be to enroll her in an online language immersion program that offers virtual language classes with native speakers and cultural experiences. This way, your wife can continue to learn and practice the language even after the anniversary celebration has ended. Alternatively, you could also gift her language-learning materials such as books, software, or audiobooks that she can use to continue practicing the language.
Or you can get her a star map with the date of your anniversary.
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.