The Advertiser has opened its archives to see what was making the news this week 25, 50 and 100 years ago. 25 years – June 25, 1999 ABOVE: Demonstrating their performing skills are three of the youngsters who took part in a music festival at Bowbridge Infants’ School, Newark. Pupils from nine schools in Newark, Farndon and Balderton took part. Seven songs were chosen before the event for each school to learn and perform on the day. • Forensic scientists were sifting through rubble left by an explosion that ripped through a terraced home, after ruling out a gas leak as the cause. Welder Mr Coli…