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_name_66 ( age__years VARCHAR, _days_ VARCHAR, begin_date VARCHAR )

### Question ###
What was the age of the member of the United States House of Representatives that began their term on May 7, 1886?

### Accurate SQL ###

SELECT age__years, _days_ FROM table_name_66 WHERE begin_date = "may 7, 1886"