After organizing an 1889 strike of casual workers on this body of water, Ben Tillett rose to prominence as a leader of “New Unionism.” At warehouses along this body of water, deal porters received loads of timber from lightermen. Richard Parker led a “floating republic” of sailors which blockaded this body of water over a pay dispute during the Nore mutiny. Casualties from the (*) Princess Alice sinking (10[1])were exacerbated by this body of water’s pollution. Children called “mudlarks” scavenged this (10[1])river’s (10[1])banks. (10[1])Joseph Bazalgette designed a new sewer network after a “Great Stink” from this river crippled legislative activity. John Snow conjectured that contaminated water piped in from this river caused cholera. For 10 points, name this river that flows through London. ■END■