Time-Span of Formation, Pensionnat Saint-Joseph (El-Biar)
(inverse of) at some time within
(inverse of) begin of the begin
(inverse of) ongoing throughout
---01
---01
--01
--01
1900
1900
(inverse of) at some time within
(inverse of) begin of the begin
---01
---01
--01
--01
1899
1899