CREATE TABLE table_33700 ("Episode Number" FLOAT, "Title" TEXT, "Podcast Date" TEXT, "Run time" TEXT, "Historical References" TEXT)

What is the topic of the episode that runs 6:07?
SELECT "Historical References" FROM table_33700 WHERE "Run time" = '6:07'
SELECT "Historical References" FROM "table_33700" WHERE "Run time" = '6:07'