1690/1691

For 1690/1691 the key weeks and dates were: 

Week 1: 16 December to 23 December 1690 

New Year 1691, Week 3: 30 December to 6 January 1691 

Legal New Year, Week 15: 24 March to 31 March 1691 

Week 52: 8 December to 15 December 1691 

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