接続詞butについて
It wasn't until the 19 century that the Chinese would become interested in math again, but this time under the influence of European mathematical knowledge.
①butは等位接続詞でよいですか？
②butが繋ぐ句はthe 19 centuryとthis time under～knowledgeでよいですか？
よろしくお願いいたします