CREATE TABLE table_17715 ("Name of System" TEXT, "Location" TEXT, "Traction Type" TEXT, "Date  ( From ) " TEXT, "Date  ( To ) " TEXT, "Notes" TEXT)

how many notes are form the date (from) 14 march 1910?
SELECT COUNT("Notes") FROM table_17715 WHERE "Date (From)" = '14 March 1910'
SELECT COUNT("Notes") FROM "table_17715" WHERE "Date (From)" = '14 March 1910'