What links Althea & Donna, Sean Paul and Ken Boothe? The Saturday quiz

From Kling Klang and the Queen of Mauretania to Elf, Peterbald and Sphynx, test your knowledge with the Saturday quiz

1 What was discovered on a dish containing Staphylococcus aureus?
2 At which Jewish festival is it traditional to serve triangular food?
3 Whose daughter became Queen of Mauretania in 25BC?
4 Kling Klang in Düsseldorf was which band’s studio?
5 Which Briton was the first person to deadlift 500kg?
6 What are studied by a dendrochronologist?
7 Which warrior class was abolished in the 1870s?
8 On the Calculation of Volume is a seven-novel series by which Dane?
What links:
9 Gladstone only; eg Salisbury, Baldwin; eg Churchill, Wilson; eg Thatcher, Truss?
10 Alexander III; Austerlitz; Alma; Bir-Hakeim; Jena; Léopold Sédar Senghor?
11 Bambino; Donskoy; Elf; Peterbald; Sphynx?
12 Althea & Donna; Ken Boothe; Desmond Dekker; Boris Gardiner; Sean Paul?
13 Pacific Warriors; Invictus; Murderball; The Brighton Miracle; This Sporting Life?
14 Manchester and Sheffield, via Ladybower reservoir?
15 Earl of Essex; 16th US president; Australian bushranger; wartime German industrialist?