ことから

1. 1Gives the fact from which a name or designation comes.Ex. 1
2. 2Gives the objective fact on which a judgment, decision, or resulting situation is based.Ex. 2

Mainly written and explanatory. It is typical of descriptions, reports, origin stories, and official notices, and often appears with 〜と呼ばれている, 〜と名付けられた, or 〜ことがわかる. Unlike the everyday から or ので, it presents an observable fact as grounds rather than a personal reason. The main clause typically states a result or judgment, or, in formal notices, a call for caution or action.

• ところからN2「ところから」 is basically the same as 「ことから」 in meaning and connection, also leans written, and the two are mostly interchangeable; 「ところから」 emphasizes drawing a conclusion from some feature or situation in the first clause, and is less commonly used than 「ことから」.
• ためにN3「ために」 also has the separate meaning of 'in order to' (purpose). When expressing cause, 「ために」 states the cause that produced the result, while 「ことから」 focuses on the basis for a judgment or the origin of a name; after a noun, the former takes 「の」 and the latter takes 「である」.
• からしてN2「からして」 attaches directly to nouns and makes an inference from some sign (often with a conjecture expression at the end of the sentence), and can also cite the most basic item to generalize about the rest; 「ことから」 takes the plain form, objectively states factual grounds, and leads to a result or the origin of a name, in a written style.
• ものだからN2「ものだから」 is colloquial with an excuse-like tone, and the following clause can be a request or apology; 「ことから」 is written and objective, does not take requests, and can also explain the origin of a name. After nouns they take 「な」 and 「である」 respectively. Generally they cannot be interchanged.
• というのはN3「というのは」 raises a word or matter as a topic to define or explain it, or adds a reason for the previous sentence at the start of a sentence, in a neutral register; 「ことから」 first presents factual grounds and then leads to a result or the origin of a name, in a written style, so the two cannot be interchanged.
• せいでN3「せいで」 blames a bad result on its cause with a tone of dissatisfaction, and is common in speech as well; 「ことから」 objectively states grounds or the origin of a name, so they should not be interchanged. Nouns take 「のせいで」, while 「ことから」 takes 「である／だったことから」.

ところから is close in meaning but more literary, and からして judges from a single telling point, while ことから cites a general fact as grounds for a name or judgment. ために states a cause or purpose more directly, ものだから gives a personal, excuse-like reason, というのは introduces an explanation of a preceding statement, and せいで blames a cause for a bad result.