saturday 7 and 21 february, 7 and 21 march and 4 and 25 april, 9 and 23 may and 6 and 20 june

Please write the text above using proper case.
Saturday 7 and 21 February, 7 and 21 March and 4 and 25 April, 9 and 23 May and 6 and 20 June