Q: Is the reading of the Passion “in parts” on Palm Sunday and Good Friday unique to the US and/or English-speaking world (an adaptation), or does it extend to other parts of the world as well (part of the editio typica of the lectionary)?
==
A: There’s a long tradition about assigning the Passion to three deacons. The divisions are not noted in the typical edition of the lectionary, and I’m not sure where they come from.
My copies of lectionaries from Germany and France are several decades old, but they do have parts assigned to different readers as we do. So does the Misal y Leccionario del Vaticano II according to the 3rd edition of the missal, published more recently by Desclée De Brouwer and Mensajero.