Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_20887670_1 ( year_joined VARCHAR, colors VARCHAR )

### Question ###
in what year did the colors red and gold join?

### Accurate SQL ###

SELECT COUNT(year_joined) FROM table_20887670_1 WHERE colors = "Red and Gold"