High Quality Content by WIKIPEDIA articles! Parliamentary elections took place in Estonia on Sunday, March 4, 2007 to elect members of the Riigikogu. The electoral system was a two-tier semi-open list proportional representation system with a 5% (27,510.65 votes) election threshold. It was the world`s first nationwide vote where part of the votecasting was allowed in the form of remote electronic voting via the Internet.