Both sentences convey information about the thirteenth-century Altneuschul (Old New Synagogue) being a historic synagogue in Europe and still in use today. However, the second sentence "Still in use today, the historic thirteenth-century Altneuschul, or Old New Synagogue, is among the oldest synagogues in Europe." is more formal.
Here's why:
1. **Sentence Structure:** The second sentence starts with an introductory phrase "Still in use today," followed by the subject "the historic thirteenth-century Altneuschul," which creates a more formal tone compared to the exclamatory "Wow" at the beginning of the first sentence.
2. **Word Choice:** The use of the word "among" in the second sentence is more formal than "super" used in the first sentence. The word "super" is informal and colloquial.
3. **Order of Information:** In the second sentence, the information is presented in a more organized and formal way by stating the current status of the synagogue first ("Still in use today") before providing historical context, making it more formal and structured.
Therefore, the second sentence is considered more formal in style and presentation.
