There are three types of national elections in Uruguay which are:
Senate: occurs every 5 years. The first election was held in 1934 and the last one was in 2019.
House of Representatives: occurs every 5 years. The first election was held in 1828 and the last one was in 2019.
Presidential: occurs every 5 years. The first election was held in 1922 and the last one was in 2019.