The Accounting Sticks That Burned Parliament

On the night of 16 October 1834, J.M.W. Turner hired a boat on the Thames and sketched the sky over Westminster as it turned orange [S7]. He worked from both the boat and the south bank, alongside thousands of spectators, as the medieval Palace of Westminster burned to a shell [S7]. The blaze was the largest in London between the Great Fire of 1666 and the Blitz [S1]. It was visible from Windsor Castle and from stagecoaches on the South Downs [S1]. Turner's two finished oil paintings of the night now hang in Cleveland and Philadelphia [S7].

The fire began with a paperwork problem. Specifically, a wood problem.

For roughly seven centuries the British Exchequer had kept its books not on paper but on notched sticks of hazel or willow [S5]. According to Dialogus de Scaccario, the c. 1177 treatise by Richard FitzNeal, Treasurer to Henry II, the denominations were carved against the human body: a notch the thickness of a palm meant £1,000; a thumb's breadth, £100; a little finger, £20; a swollen barleycorn, £1; slightly narrower, a shilling; and a single cut that removed no wood at all stood for a penny [S3]. After notching, the stick was split lengthwise. The Exchequer kept one half — the foil. The payer kept the other — the stock [S5].

The system was forgery-resistant in a way paper ledgers could not match. The unique grain of a snapped willow rod meant only the original matching half would reunite cleanly with the issuer's piece [S5]. Notches were cut across the full width before splitting, so neither party could later shave value off or add value without the tampering being visible on inspection [S5]. Two halves were a physical hash: if they fit, the receipt was genuine.

Better still, the stock was negotiable. A holder could pay a third party with it, who could in turn redeem it at the Exchequer or apply it against his own taxes [S5]. Tally sticks circulated as a parallel currency from the reign of Henry I, around 1100, until the final sticks were cut in 1826 [S5].

The decision to abolish them was older than the disposal — much older. The Receipt of the Exchequer Act 1783 (23 Geo. 3 c. 82) had abolished the system in principle [S2]. But the Act made its own activation contingent on the death or surrender of the two then-living Exchequer Chamberlains, who held the office as sinecures [S2]. More than four decades passed while Parliament waited for two men to die. The last Chamberlain finally obliged in 1826, at which point production ceased [S2]. The accumulated archive — centuries of state receipts in notched wood — sat in the Exchequer cellars, awaiting a bonfire nobody was in any hurry to light.

In October 1834, with Parliament adjourned, Richard Weobley, the Clerk of Works, received the order to clear them out [S4]. Two cartloads of tallies remained [S2]. The obvious solution, as Charles Dickens later pointed out, was to hand them to the poor of Westminster as firewood [S1]. Dickens — speaking in 1855 to the Administrative Reform Association, more than twenty years after the fire — captured the official mind exactly: "they never had been useful, and official routine required that they should never be, and so the order went out that they were to be privately and confidentially burnt" [S1].

Weobley assigned the destruction to two Irish labourers, Joshua Cross and Patrick Furlong [S4]. They began at dawn on 16 October and worked through the day, feeding the sticks into the two coal-fired furnaces under the House of Lords [S1][S4]. To keep the load moving, they propped the furnace doors open, which drew extra oxygen and pushed flames much farther up the flues than the heating system had been built for [S1]. The heat melted the copper linings of the flues and lit a chimney fire that smouldered for hours beneath the floor of the Lords Chamber [S4].

That afternoon, Mrs Wright, the housekeeper, was showing tourists around the Chamber. She complained about the smoke. Visitors noticed the floor was unusually hot underfoot. She finished the tour and did nothing [S1][S4]. The fire was finally spotted in the early evening by a doorkeeper's wife, who saw flames licking up the scarlet curtains around Black Rod's Box [S1].

Within hours, both Houses were gone.

The public inquiry afterwards found multiple parties guilty of negligence — Weobley, the labourers, the housekeeper — and prosecuted none of them [S4]. The Gothic Palace tourists photograph today was built as its replacement. It is, in effect, a regret memorial: a Victorian medievalism erected over the ashes of an actual medieval building, which had been destroyed because a modernizing bureaucracy was ashamed of an accounting technology it considered embarrassingly medieval and tried to dispose of the evidence quietly.

The cover-up did not entirely succeed. Some Exchequer tallies were rescued from the sweepings after the fire, including specimens dating to the 14th century [S5]. They survive in the UK National Archives and in the Science Museum's collection [S5][S6]. You can go and look at them.

One last thing worth landing on. A split tally — two halves whose physical structure binds them together such that neither party can alter the record without the other half exposing the fraud — is conceptually the same trick as a modern cryptographic commitment scheme. The unique grain pattern across the snap line functions as a physical hash. The twentieth century reinvented the principle in code and treated it as a novelty. The British Treasury had been doing it in hazel and willow since the Norman Conquest [S5] — and Parliament burned itself down rather than admit the old system had worked.