Guavabon

here you go:

Medieval (9th-15th century):

10th century and earlier

Romance (1000-1250)

11th century

12th century

13th century

more 13th century

14th century

more 14th

15th century

and more 15th century

Gothic (1150-1550)

Renaissance (1520-1650)

16th & 17th century

16th century

more 16th

Tudors (1500-1550)

more Tudors

Elizabethan Period (1558-1603)

Jacobean Era (1603-1625)

17th century

more 17th century

and again

and even more

this won’t stop

Baroque (1600-1750)

Georgian Period (1714-1830):

18th century

more 18th century

18th century women’s fashion

18th century men’s fashion

Rococo (1720-1770)

Classicism (1770-1790)

children 18th-19th century

Regency Preiod (1811-1820)/ Empire (1800-1820s):

1790-1820s

more stuff on regency and georgian era

even more

that’s not enough regency

and more

how is there so much

early 19th century men’s wear

early 19th century women’s wear

Victorian Period (1837-1901):

Romantic Era (1820-1840s)

Civil War Era/1850-1860s

1870-1890s

more victorian

Edwardian Period (1901-1910):

1900-1910s

Belle Epoque (1880-1910s)

more edwardian/belle époque

Modern:

1910s-1920s [Fashion between the World Wars]

1920s

more roaring 20s

so much 20s

1920s hairstyles

1930s

1930-1940s

1930-1950s

1950s

more 50s

1960s

1960-1970s

1980s

lots of periods in one spot/fashion through centuries:

here, here, and here is almost everything (and properly ordered)

also here with lots of historic fashion magazines

100 years of beauty (includes lots of other cultures too!)

historic fashion

costumes of antiquity

more historical clothing

history of fashion

more history of fashion

“vintage” clothing

historic costumes

children’s historical fashion/toys

details

historic wedding dresses

historic assecoires (hats, shoes…)

hats

masks

parasols

lots of embroidery/jewlery

it indeed is western/european centric, I’m sorry for that, but for other cultures I simply don’t have so many references

Here is a page for premodern weapons, broken down into a ton of subcategories, with the weapon’s region of origin. 

Here is a page of medieval weapons.

Here is a page of just about every conceived superpower.

Here is a page for legendary creatures and their regions of origin.

Here are some gemstones.

Here is a bunch of Greek legends, including monsters, gods, nymphs, heroes, and so on. 

Here is a website with a ton of (legally attained, don’t worry) information about the black market.

Here is a website with information about forensic science and cases of death. Discretion advised. 

Here is every religion in the world. 

Here is every language in the world.

Here are methods of torture. Discretion advised.

Here are descriptions of the various methods used for the death penalty. Discretion advised.

Here are poisonous plants.

Here are plants in general.