Lincolnshire reaching between 4.7 and 5.3 on the Richter magnitude scale; it was one of the largest earthquakes to affect Britain in recent years. Lincolnshire is home to Woolsthorpe Manor, birthplace and home of Sir Isaac Newton. He attended The King's School, Grantham. Its library has preserved his signature, carved into a window sill when he was a youth. Bedrock in Lincolnshire features Jurassic limestone (near Lincoln) and Cretaceous chalk (north-east). For much of prehistory, Lincolnshire was under tropical seas, and most fossils found in the county are marine invertebrates. Marine vertebrates have also been found including ichthyosaurus and plesiosaur .
Cultural depictions of Margaret Thatcher Thatcher's "uncompromising speeches with a slowly-evolving post-acid house backing"; it reached #68 on the UK Singles Chart in January 1991. The track was popular with many nightclubs at the time, despite the mixed view of Thatcher among the rave community. In 1983, a vinyl record was pressed entitled The Wit and Wisdom of Margaret Thatcher, however the whole grove on both sides are totally silent. Notable works include: Thatcher was seen as a "gift" by political cartoonists. Among the most memorable images are Gerald Scarfe's provocative "scythe-like" caricatures, some of which were exhibited in his 2005 show "Milk Snatcher, Gerald