Table: presidents_ages
Columns: president
date_of_birth
date_of_inauguration
age_at_inauguration
length_of_retirement
date_of_death
lifespan

Question: What is the date of the inauguration with a Length of retirement of 00,624 days?
SQL: SELECT "date_of_inauguration" FROM presidents_ages WHERE "length_of_retirement" = '00,624 days'