CREATE TABLE table_name_46 (date__from_ VARCHAR(255), name_of_system VARCHAR(255), traction_type VARCHAR(255))
On what date did the event begin that had a steam traction type and used the system named HSM (1883–1910) GT (1915–1922)?
    
SQL: SELECT date__from_ FROM table_name_46 WHERE name_of_system = "hsm (1883–1910) gt (1915–1922)" AND traction_type = "steam"