Common Mistakes in Historical Fiction Research: A Checklist for Writers

The reading is the easy part. Diaries, inventories, newspaper advertisements, maps: a good research folder fills itself, and every source suggests three more. The trouble starts when you sit down to write and have to decide which fragments belong in the story — and how to keep twenty-first-century habits of thought out of a character's head.

Most historical errors are not howlers. They are quiet slips: a woman who thinks about marriage the way a modern reader does, a meal that could not have been on the table, a plot that depends on a journey nobody could have made in the time allowed. Here are the mistakes that come up again and again, and some ways to catch them before a reader does.

1. Giving characters modern minds

You can write a character who questions the assumptions of their age, but the questioning has to cost something and sound like its own period. A medieval farmer who privately doubts the Church is plausible. One who argues for religious tolerance in the language of a present-day editorial is not.

Ask what your character would take for granted: hierarchy, the certainty of hell, the belief that weather is judgement, the assumption that a servant's life is not like their own. Then ask what it would take for them to think otherwise — and make the story pay that price. The friction is usually more interesting than the agreement.

2. Anachronistic language and address

Dialogue is where readers notice first. Words arrive and leave at particular moments: "hello" only became common in the later nineteenth century, and much of the slang that feels timeless is Victorian or newer. Contractions, swearing and terms of endearment all shift. So does grammar under stress.

Two guards against this. First, read the period's own voices — letters, court transcripts, plays, pamphlets — and steal cadence rather than vocabulary. Second, resist fake-archaic speech ("Good morrow, sirrah") as firmly as you resist modern idiom. Readable period-flavoured English is usually plainer than writers expect.

Forms of address matter as much as words. Who uses a first name and who uses a title? When does a wife call her husband by his Christian name, and in front of whom? Would a servant address an employer directly at all? A single misplaced "Tom" can undo a page of careful scene-setting.

3. Time, dates and distance

Calendars are a genuine trap. Britain did not adopt the Gregorian calendar until 1752, when eleven days vanished, and the legal year in England began on 25 March until the same reform. Standard time is even later: it arrived with the railways in the nineteenth century, and before that every town kept its own. Pocket watches were luxuries. Most people read the day from light, bells and church clocks.

Then there is travel, the most common structural error in historical fiction. A rider covering thirty miles in a day is doing well; a coach is slower and depends on roads, weather and horses. News moves at the speed of its fastest messenger. If your plot requires a letter to arrive, a witness to appear and a rumour to spread within a fortnight, check each leg separately and in the right season.

4. Households, meals and money

New World foods — potatoes, tomatoes, maize, chillies, chocolate, vanilla — arrived in Europe only after 1500 and spread slowly, so they have no business on a medieval table. Tea and sugar were luxuries long after they were known. Lighting was a running cost, not a mood; a second candle was a decision. Nights were genuinely dark and often shared.

Money defeats modern intuition. In pre-decimal Britain, twelve pence made a shilling, twenty shillings a pound, and a guinea was twenty-one shillings. Converting an old sum into today's money with a single multiplier will mislead you, because prices, wages and what money could actually buy moved at different rates. Better to find what a character earned and what they paid for bread, rent, cloth and a night's lodging in the same decade, then keep the proportions consistent.

5. Detail that decorates but does not work

Woodsmoke, mud, candlelight. Atmosphere is easy; function is harder. The strongest period detail tells you something about work, class, money or constraint. A character baking bread tells you about fuel, ovens, grain, time and who owns the mill. A character buying a hat tells you about trade, fashion, credit and what they are giving up to afford it.

Research the how as carefully as the what. How was cloth woven? What did a physician actually do, and what did a midwife do instead? How long does a wound take to close? Specificity earns trust, and it lets you cut the paragraph of costume description entirely.

6. Building a whole world on one source

It is tempting to find the perfect book and treat it as settled fact. Historians disagree, and the disagreements matter. A travel account dwells on the strange; a newspaper reports the unusual; a conduct manual describes an ideal nobody quite lived up to. None of them show you an ordinary Tuesday.

• Triangulate: read at least two historians who argue with each other, and notice where they differ.
• Go to the primary material when you can. Wills, inventories, court records, trade directories, maps and local archives are often free or cheap to consult.
• Check quotations back to their source; many circulate badly.
• Prefer sources from your exact decade and region. A detail true in London in 1780 may be wrong in Yorkshire in 1810.

A last check before you type "The End"

Keep a running doubt list as you draft — every question you paper over in the heat of a scene. Then answer it, briefly, and stop. Historical research expands to fill any amount of time you give it, and a novel needs enough accuracy to be trusted, not an archive.

• Every character: could they read, and could they afford paper if they could?
• Every meal: was the ingredient available, affordable and in season?
• Every journey: how long did it take, on that road, in that weather?
• Every message: how many days until it arrives?
• Every form of address: would this person really say that, in this room?
• Every strong opinion: would the neighbours agree, and what would disagreement cost?

When the answers hold together, the reader stops checking and starts believing. That is the whole job of research in fiction — to become invisible at exactly the right moment.

Photo: DariuszSankowski / Pixabay