CREATE TABLE table_name_46 (date__from_ VARCHAR2, name_of_system VARCHAR2, traction_type VARCHAR2)

On what date did the event begin that had a steam traction type and used the system named HSM (1883 1910) GT (1915 1922)?
SELECT date__from_ FROM table_name_46 WHERE name_of_system = "hsm (1883–1910) gt (1915–1922)" AND traction_type = "steam"
SELECT "date__from_" FROM "table_name_46" WHERE "hsm (1883–1910) gt (1915–1922)" = "name_of_system" AND "steam" = "traction_type"