Simplify the following text for a Grade 8 native English-speaking person.
Original: In January 1606 , during the first sitting of Parliament since the plot , the Observance of 5th November Act 1605 was passed , making services and sermons commemorating the event an annual feature of English life ; the act remained in force until 1859 .
Simplified: This made services and sermons commemorating the Plot an annual feature on 5 November . The act remained in force until 1859 .