agriculture.
The second step in the chain of civilization is typically the development of agriculture and the establishment of settled communities. This transition marks a shift from a nomadic lifestyle to a more stable and organized society, with people focusing on cultivating crops and domesticating animals for food.
The first step in the proton-proton chain of nuclear fusion is when two protons fuse to form deuterium, releasing a positron and a neutrino in the process.
a switch to monotheism
Learning to use floods
controlling river water
Its Producers :D Its the first step in a food chain ;)
Uranium 235
Early recognition (of a problem) and access (phone) to the EMS.
the first use of stone was to create tools
The last step in an accident chain is "Result." This step details what occurs right after, and even later on, the accident.
No, attacks (and summons) do not use the chain. If you want to use a card like Sakuretsu Armor, then it is that which becomes chain link 1.
Development of irrigation