1. Although discovered in 1888 by Samuel Alejandro Lafone Quevedo , the ruins were first studied in 1897 by the archaeologist Juan Bautista Ambrosetti .
2. Although the ruins were examined in 1888 by Samuel Alejandro Lafone Quevedo , they were first discovered in 1897 by the archaeologist Juan Bautista Ambrosetti .

Are these two sentences paraphrases of each other?
no