NUMBER 90 CELEBRATES FIRST BIRTHDAY WITH THREE DAYS OF MUSIC, ART AND EXTRAVAGANZA Thurs 19th, Fri 20th, Sat 21st March | Free 90 Wallis Road, Hackney Wick, E9 5LN www.facebook/Number90/event   Hackney Wick’s cultural hotspot Number 90 unveils first birthday plans after a magical year by the canal – free popcorn, free sweets,…