What is the earliest year the world junior championships has 1500 m notes?
CREATE TABLE table_61536 (
    "Year" real,
    "Competition" text,
    "Venue" text,
    "Position" text,
    "Notes" text
)
SELECT MIN("Year") FROM table_61536 WHERE "Notes" = '1500 m' AND "Competition" = 'world junior championships'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the earliest year the world junior championships has 1500 m notes? ### Input: CREATE TABLE table_61536 (
    "Year" real,
    "Competition" text,
    "Venue" text,
    "Position" text,
    "Notes" text
) ### Response: SELECT MIN("Year") FROM table_61536 WHERE "Notes" = '1500 m' AND "Competition" = 'world junior championships'