Modifiers matching bubble:

• economic,
• insoluble,
• special,
• historical,

Simple categories matching historical:

• event,
• tradition,
• establishment,
• weapon,
• document,
• trait,
• amount,
• artifact,
• source,
• building,
• item,
• style,
• content,
• prejudice,
• point,
• situation,
• information,
• revolution,
• info,
• monument,
• demography,
• relic,
• masterpiece,
• narrative,
• collection,
• exhibition,
• form,
• vocabulary,
• inquiry,
• knowledge,
• formation,
• science,
• matter,
• image,
• network,
• values,
• storm,
• injustice,
• grouping,
• thought,
• experience,
• research,
• facility,
• arts,
• log,
• equivalent,
• inaccuracy,
• gem,
• example,
• property,
• tension,
• book,
• pattern,
• centre,
• artefact,
• phenomenon,
• city,
• period,
• circumstance,
• product,
• works,
• personage,
• change,
• force,
• occasion,
• structure,
• condition,
• construction,
• entity,
• trail,
• representation,
• skill,
• institution,
• recreation,
• architecture,
• site,
• record,
• stuff,
• religion,
• game,
• feature,
• era,
• treasure,
• data,
• concept,
• hazard,
• ruin,
• holiday,
• subject,
• evidence,
• being,
• proportion,
• language,
• society,
• circumstances,
• artwork,
• boundary,
• reproduction,
• archaeology,
• agreement,
• analysis,
• theme,
• report,
• genocide,
• fiction,
• perspective,
• happening,
• craft,
• setting,
• bubble,
• papers,
• philosophy,
• factor,
• journal,
• occurrence,
• use,
• moment,
• process,
• part,
• organization,
• attraction,
• palace,
• material,
• faith,
• medium,
• area,
• discipline,
• corpus,
• literature,
• chinese,
• art,
• landmark,
• disturbance,
• activity,
• idea,
• variable,
• field,
• dictionary,
• practice,
• elements,
• study,
• industry,
• instrument,
• location,
• souvenir,
• measure,
• antiquity,
• thing,
• person,
• movement,
• value,
• division,
• profession,
• account,
• agent,
• detail,
• contingency,
• writing,
• object,
• action,
• achievement,
• garment,
• business,
• people,
• figure,
• attribute,
• episode,
• actor,
• needlework,
• neighborhood,
• issue,
• development,
• publication,
• piece,
• topic,
• details,
• heritage,
• genre,
• agency,
• marker,
• place,
• difference,
• section,
• entertainment,
• accident,
• legacy,
• cause,
• dress,
• work,
• opposition,
• tool,
• clue,
• motif,
• symbol,
• juncture,
• transition,
• presentation,
• set,
• trade,
• clothing,
• relationship,
• fact,
• edifice,
• flag,
• song,
• text,