I promise you, starting with just 2 sims who are married to each other, will be plenty to fill your world up in no time. And there is only 1 worst case scenario with starting with fewer sims, and its that you have to force someone to survive. 

Do not use these, people had indoor chamber pots to do their business. Outhouses were not used for residential homes until 1800's in rural America.

To enable teen marriage and pregnancy, you need Mc Woohoo, which is a separate download from the all-in-one

Note that any fertility and marriage settings in MC Pregnancy are for NPC’s

To enable: MC Command Center (on computer)>Mc Woohoo> Woohoo Actions> Allow Teens

For Fertility, ideally the use of the mod Relationship & Pregnancy Overhaul by Lumpinou. It automatically gives each sim their own fertility value and miscarriage/pregnancy complication chance, all based on age, health, and other factors. Note: you must set mc risky woohoo % to 0%

Without the use of RPO, you can manually change fertility using Mc Woohoo

What morbo does is have try for baby at 100% and puts risky woohoo at the age appropriate chance. She uses try for baby for side households, and risky woohoo for heirs. 

Note:this indicates (and has been confirmed) that “Pregnancy Tries” are actual pregnancies, given that side households have 100% chance of pregnancy in her game

Unless your medieval peasants live in a populous city, all your sims can be educated
HOWEVER, if you would like to have them not enroll in school, do not use tripilis "can quit school" mod. 

Why? its actually an MC Command Center setting!

MC Command Center (On the computer) > MC Career > Children Quit School

MC Command Center (On the computer) > MC Career > Teens Quit School

You may have guessed that certain levels of multiples would've been impossible in certain time periods, but you may also be a bit shocked on when they came to be:

The first set of twins i found were in 1990 BCE
First set of triplets in 670 BCE
First quadruplets in 1750
First quintuplets in 1896
First sextuplets in 1866 (yes they were before the first set of quints that i found)

To set: MC Command Center (on computer)>Mc Pregnancy> Offspring> Maximum Offspring> (number)

If your sims try to have quintuplets between 1866 and 1896, you have to randomize the pregnancy as many times as it takes for them to not have quintuplets
To do that: MC Command Center (on sim)>Mc Pregnancy> Specify offspring> (leave both sections blank)

Its hard to get correct percentages when limited by the most common set of dice. For example, Maternal mortality through history was a mere 2%, but the lowest you can get with a single roll of a D20, is 5%.

To remedy this, you roll again.
For Preteens, if they roll to die in labor, roll a D6
If they roll a 1, then that means they die, any other number is a traumatic birth, and that sim is now infertile

For Teens, if they roll to die in labor, roll a D4
If they roll a 1, then that means they die, any other number is a traumatic birth, and that sim is now infertile

For Young Adults, if they roll to die in labor, flip a coin
If they get heads, then that means they die, tails is a traumatic birth, and that sim is now infertile

For Adults, if they roll to die in labor, roll a D4
If they roll a 1, then that means they die, any other number is a traumatic birth, and that sim is now infertile

For Elders, if they roll to die in labor, roll a D10
If they roll a 1 then that means they die, any other number is a traumatic birth, and that sim is now infertile

***Note: these additional rolls only work when using my maternal death rolls. If using MorbidGamer's, only use the Young Adult additional roll

It is a generally held belief that women could not inherit in the past. That rather than staying in the direct family line, property and heirships would bypass all women to go to obscure male relatives. This just isn't true. Through many sources, I have been able to confirm that women were never outright barred from inheriting, and in fact, if a man had no sons but had daughters and brothers, his property would be split amongst his daughters before traveling to his next oldest brother. 

“Within the same generation of descendants, men were favoured over women, but only the eldest male inherited. If there were no male issue, then any daughters inherited together as co-heiresses.” -Mapping the Medieval Countryside

This means that if a man has no sons, his daughters inherit before his brothers. If he has no children, his next brother inherits, and if he has no sons, his daughters inherited before the next brother, and so on and so on

“Thus, the son of A's deceased eldest son had priority over A's living younger sons, and indeed the daughter of a dead eldest son had priority over a surviving younger son.” -Mapping the Medieval Countryside

If a man’s oldest son is dead, but that son has children, those children (including daughters) come before the man's next son, meaning inheritance passes in a direct line rather than preference to the living.

“When a dead person left no descendants, the hunt for heirs turned to their collaterals: their father's or mother's issue, their grandparents' issue, and so on. Within each of these lineages, the above rules again applied: brothers inherited before sisters, uncles before aunts, and so on.” -Mapping the Medieval Countryside

Saying, that only after a person had no surviving children or grandchildren etc, did it pass to that person's brothers/sisters, aunts/uncles, etc. However, also note below:

“Collaterals of the ‘half blood' were excluded.  This meant that if a tenant died seised without issue, but with a sister and a half-brother (i.e. sharing only the parent from whom the inheritance came), the sister although female would inherit.” -Mapping the Medieval Countryside

Here is another source, referencing a document from 1462, saying a similar if not the same thing:

“Normal inheritance rules favoured the eldest son, who would inherit the whole property and pass it to his own sons. If the eldest son died before he could take possession, the second son would inherit, and so on. If there were no sons, then the daughters would inherit ahead of more distant male relatives.” -University of Nottingham

Morbid's rule excluding interracial marriage can be completely disregarded.

“In Elizabethan England, interracial marriages were not uncommon. This might have been because people of color in the Early Modern period were better off than you might assume. This isn’t to say that they didn’t face racism, but we know that black Elizabethans sometimes had decent positions in society, they held property, and they faced fairly equal protection under courts of law.” -the Professional Theatre at Southern Utah University

While we expect that, because people of color were at this specific level of society recently, and arguably still, they must have always been treated and restricted to the same level or more. This simply isnt the case. Societal racism to the extent of the past 2 or 3 centuries is vastly different from how people of color were treated before that period. 

“Far from being “strange,” “exotic,” or “rare,” there were plenty of people of color in Elizabethan society. Chances are that Shakespeare would have run into them in his everyday life. People of color were commonplace in his day, and as could be expected, they sometimes married white men and women.”-the Professional Theatre at Southern Utah University

These interracial couples weren’t even seen as strange or out of the ordinary, and while our view of history tends to be thoroughly whitewashed, the extent of people of color in medieval and early modern England is rather unfathomable considering our modern perception.

“The fact that interracial marriages took place, however, didn’t mean that everyone was comfortable with it… Even so, we know that legally, interracial marriages were allowed… In real life, too, these marriages weren’t prosecuted by the law. Interestingly enough, in cases where a black man and a white woman were caught in a relationship outside of marriage, the punishments were exactly the same as if it were a white man and white woman. It’s clear that the law usually treated interracial relationships as valid as relationships between white men and women.”-the Professional Theatre at Southern Utah University

Further cementing the fact that while interpersonal prejudice may have (and definitely did) exist, legal prejudice was either non-existent, or miles less extreme than our initial expectations.

First off, the tag for this challenge is #ultimatedecadeschallenge

Heres gallery ID's accompanied by discord users in the UDC discord! (if you would like yours added, just message me on discord (@kokada) with your gallery ID)

@Lady Morbid (Bringer of Death)  -- Morbidgamer1

@severalperson (pls ping)  -- Dalakanan312

@megannn ~ goblin trainer  -- Killerduuckie01

@Michelle Impey  -- mimpey98

@DefixntGxmer -- DefixntGxmer

@ScreamingAllTheTime  -- Jayebird66

@john — Gharryy

@buythestars  -- Gossamersims

@hiimcecelia — eritrealia

@Vanilla Chai Sims — VanillaChaiSims

@Kara!! -- DrittzDourden

@ari -- arilawrence

@Late -- latenightwriter

@jadenplays2667 -- Jadenplays2667

Newborn/Infant deaths https://spinthewheel.app/9N1izkswdL
Toddler/Children https://spinthewheel.app/6EbWZ6fBDy
Teen+ (not including maternal) https://spinthewheel.app/oMmvgTF0ed 

https://www.familyecho.com/#