[wagglebee]

And just to show that this WAS NOT "invented" by Pope Pius XII in 1950 and has ALWAYS been believed:

 
"Assumption of the Virgin Mary" by Peter Paul Rubens, 1626

"Assumption of the Virgin" by Titian, 1516-18

"Assumption of the Virgin" by Annibale Carracci, 1590

"The Assumption of the Virgin" by Botticini, 1475-76

[AnAmericanMother]

More:

Assumption of the Blessed Virgin, by Bergognone (active 1481-1522). (I'll note that this is in the Met, which has been burned often by forgeries - it looks a little too modern to me to be early 16th c., although looking at the Apostles it may just be that the Virgin and Christ have been restored/overpainted)

Mosaics of the dormition, assumption, and coronation of Mary in St. Maria de Travestere, by Pietro Cavallini (late 13th century).

[TASMANIANRED]

Very beautiful.