In Germany, people would refer to it as "Drittes Reich", which is translated in English to "Third Reich" - and I think this is the answer you are looking for, it's very widely used.
Reich means "Empire" , so it could also be translated to the "third empire" but this is not usual.
I know its not mosaics, that was after their time, collages are way after their time. And impressionism is a 19th century art. so I believe the answer is D weaving
Robert E Lee and Gen Ulysses S. Grant met in the Wilmer McLean home at Appomattox Virginia at 1:00 PM to finalize the terms of surrender for the Confederate Army which effectively ended the US Civil War.
