The Economic Cycle.
An economy when graphed will essentially look like a wave. It may not be perfect, as there will be different size expansions and contractions/recessions.
Expansions is when the market is doing well or correcting from a recession. The Peak is the highest point that specific economic period can achieve. From there, the market will enter a Recession or Contraction where it goes down. It’s Trough is the lowest point that the contraction will reach.
Extended family often played a large role in colonial family life. In poorer families, it was not uncommon for grandparents, aunts or uncles to live in the household. Wealthier families often found themselves taking in children from less fortunate family members to help with their breeding and education.
India, China, and the Arabian peninsula take one hundred million during the decline of the Mughal Empire, several smaller states rose to... in 1739, Nader Shah, emperor of iran, defeated the Mughal army at the huge battle of Karnal. The British East India Company had been given permission by the Mughal.
Estonia, Latvia and Lithuania cannot really trust Russia (the leader of the Commonwealth of Independent States) as Russia forcibly made those states part of the Soviet Union and and did allow for democracy there. That's why they don't want to be part of CIS. They can afford not to be due to their location in Europe, next to western Europe, so then can claim help from western Europe in case of Russian Invasion (unlike Kazakhstan for example).
The constant, or dependent variable is the variable that does not change in the experiment.