Caroline Lucas became Britain's first Green Party MP after winning the Brighton Pavilion seat.
With 16,238 votes, she beat Labour's Nancy Platts into second place, and the Conservative candidate Charlotte Vere into third.
The result was first announced on our liveblog, which you can read at the bottom of this story.
The Argus is producing a special election edition to mark this historic event, which will be available in these shops from about 11am this morning.
Have your say about Caroline Lucas's victory and the rest of the Sussex results in the comments below.
After the results were announced, Ms Lucas said: "Today the people of Brighton Pavilion have made history by electing Britain's first Green MP to Westminster.
"Thank you so much for putting the politics of hope above the politics of fear and I pledge that I will do my very best to do you proud.
"For once the word historic fits the bill."
She told The Argus: "“The emphatic support of the people of Brighton Pavilion has shown that they are prepared to put their trust in the Greens.
“I feel humbled by their trust in me and am looking forward to the challenging task of representing the people of Brighton Pavilion as their MP."
Meanwhile, Mike Weatherley and Simon Kirby took Hove and Brighton Kempton respectively for the Tories.
This means Labour lost not only all their Brighton and Hove seats, but with the loss of Crawley and Hastings & Rye they have no seats left in Sussex.
Click here for a full list of constituency results - as of 6.10am, only Worthing East and Worthing West are left to come in.
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