(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 discovered in 1888 by Samuel Alejandro Lafone Quevedo , they were first examined in 1897 by the archaeologist Juan Bautista Ambrosetti .

Do these two sentences mean the same thing?

Choose from: a). no b). yes
b).