History Proficiency Test (Rekiken) common mistakes
History Proficiency Test (Rekiken) · Understand the traps and how to avoid them.
Dating the start of the Jōmon period by the appearance of pottery alone, and answering 'about 10,000 years ago' for every Jōmon chronology question without distinguishing incipient, early, and late phases or the radiocarbon recalibration debate.
Textbook summaries compress the Jōmon into a single 'since roughly 10,000 BCE' line, so candidates memorise one number and apply it to questions about the oldest pottery (Odai Yamamoto), shell mounds, or the transition to Yayoi. The 2003 and later radiocarbon work on carbonised material from sites such as Torihama shifted dates and is often tested as a 'revision of accepted chronology' item.
What to do instead
Build a three-column table: phase, diagnostic pottery type, approximate date range with the source of the dating (AMS radiocarbon vs. typological seriation). Practise questions that ask which dating method supports a claim, and note explicitly that the earliest pottery dates and the start of the Jōmon period are separate questions.
Treating the Taika Reform as a single enacted code and attributing the ritsuryō system directly to the 645 coup, rather than distinguishing the 645 political event, the 646 edict, and the later compilation of the Asuka Kiyomihara and Taihō codes.
Exam questions often phrase it as 'the Taika Reform established the ritsuryō system', which is a plausible-sounding but inaccurate compression. Candidates who learned the sequence as one event cannot answer questions about which code introduced which institution, or about the gap between promulgation and enforcement.
What to do instead
Draw a timeline: 645 coup, 646 four-article edict, 668 Ōmi code, 689 Asuka Kiyomihara code, 701 Taihō code, 718 Yōrō code. For each, note what is actually attested in sources (Nihon Shoki is retrospective) versus inferred. Answer 'which code' questions by matching the institution to the code, not to the political event.
Answering Heian questions about the Fujiwara regency by conflating sesshō and kanpaku, or by placing the height of Fujiwara power at the wrong reign, and confusing the insei (cloistered rule) with the earlier regency system.
The two regent titles look interchangeable in translation and both appear in questions about Michinaga and later Shirakawa. Candidates memorise 'Fujiwara regency' as a block and cannot map titles onto the specific emperor or the specific relationship (minor vs. adult emperor).
What to do instead
Learn the definitional rule: sesshō acts for a minor emperor, kanpaku for an adult emperor, and the same person can hold both at different times. Then attach dates: Michinaga's height around 1016, insei beginning with Shirakawa's abdication in 1086. Practise discriminating items that give a year and ask which office or system was operative.
Explaining the Genpei War and the establishment of the Kamakura shogunate as a single causal chain, and treating 1185 and 1192 as interchangeable dates for the founding of the shogunate.
Popular narrative compresses the war, the appointment of shugo and jitō, and Yoritomo's title into one story. Exam items frequently test the distinction between the establishment of military governance in the provinces (1185) and the formal grant of the title of shogun (1192), and candidates who have one date for both cannot answer.
What to do instead
Make a dated list: 1180 call to arms, 1183 Yoshinaka enters Kyoto, 1185 Dan-no-ura and the appointment of provincial constables and stewards, 1192 seii taishōgun. For each, write one line on what changed in governance. When a question offers both dates, choose based on whether it asks about de facto control or formal title.
Describing the Muromachi shogunate as uniformly weak and the Sengoku period as beginning at a single fixed date, without being able to relate the Ōnin War, the kakitsu disturbance, and the rise of daimyō to specific institutional changes.
The period is taught as a long decline, so candidates cannot answer questions that ask which event removed which shogunal function. The 'start of the Sengoku period' is genuinely debated (1467 versus later), and items often test awareness of that debate rather than one date.
What to do instead
Track institutional erosion event by event: 1441 Kakitsu disturbance and the killing of Yoshinori, 1467–77 Ōnin War and the destruction of Kyoto, the transfer of effective power to shugo-daimyō, and the gekokujō norm. For periodisation questions, state the criterion (warfare, effective authority, castle-building) rather than reciting a date.
Answering Azuchi-Momoyama questions by attributing the land survey and sword hunt to the wrong unifier, or by treating the 'three unifiers' as a sequence of identical policies rather than distinct programmes.
Nobunaga, Hideyoshi, and Ieyasu are taught as a chain, and their measures (kenchi, katanagari, cadastral registers, hostage rules) blur together. Questions that ask which measure was Hideyoshi's, or which was continued by Ieyasu, punish the blur.
What to do instead
Make a matrix with rows for land survey, disarmament, status separation, castle regulation, and foreign policy, and columns for each unifier, marking who initiated and who continued. Anchor each with one dated example (for instance the 1582 land survey in the Kinai and the 1588 sword hunt).
Treating the Edo period as static isolation ('sakoku') and being unable to name the four gateways of contact or the distinction between the Dutch factory at Dejima and the Chinese trade at Nagasaki.
The textbook label 'national seclusion' is a translation artefact, and candidates learn it as a wall rather than a managed system. Items that ask about Rangaku, the Nagasaki magistrate, or the 1854 and 1858 treaties expose the gap.
What to do instead
Learn the managed-contact framework: Matsumae domain and Ainu trade, Satsuma and Ryūkyū, Tsushima and Korea, Nagasaki with Dutch and Chinese trade. Attach the key dates 1853 arrival, 1854 Kanagawa treaty, 1858 commercial treaty and the unequal-tariff and extraterritoriality clauses.
Narrating the Meiji period as a smooth top-down modernisation and failing to place the Freedom and People's Rights Movement, the 1889 Constitution, and the 1890 Imperial Rescript on Education in relation to each other and to the oligarchy's countermeasures.
Candidates memorise the Constitution's date but not that it was granted in response to a draft constitution movement, nor that the Rescript addressed a different problem (ideological discipline) than the Constitution (legal structure). Questions that ask about the purpose of each document then defeat them.
What to do instead
For each landmark, write three lines: what problem it answered, who drafted it and under what influence (Prussian model for the Constitution), and what it left unresolved (the military's independence from cabinet). Place the 1881 political crisis and the 1890 first election on the same timeline.
Answering postwar occupation questions by treating the 1946 Constitution, the 1947 Fundamental Law of Education, and the 1951 San Francisco Peace Treaty as a single reform package, and confusing the end of the occupation with the peace treaty and the security treaty.
The occupation is taught as a reform era, so the sequence of directives, the reverse course, and the separate treaties collapse. Items that ask about Article 9, the purge, or the timing of sovereignty restoration require the distinctions.
What to do instead
Build a dated list: 1945 surrender and initial directives, 1946 Constitution promulgated, 1947 enforcement and education law, 1948–50 reverse course, 1951 San Francisco peace and US security treaty, 1952 sovereignty restored. Note that the security treaty is separate from the peace treaty and that Okinawa remained under US administration until 1972.
Using sources as neutral containers of fact: citing the Nihon Shoki or Azuma Kagami as if they were contemporaneous records, and ignoring the distinction between primary, secondary, and historiographical argument when a question asks how a claim is known.
Candidates learn events and sources together and never separate the date of an event from the date of the text describing it. Compilation context (Nihon Shoki completed 720, Azuma Kagami a later Kamakura compilation) changes what the source can support.
What to do instead
For every major source, record three things: date of compilation, patron or compiler, and purpose. Practise questions that ask which source would best support a claim, and prefer archaeological or documentary evidence over retrospective narrative where available. When a question asks about interpretation, identify the historiographical position before evaluating it.