We can use 'from' and 'by' to talk about the position of something or someone, but their meanings are different. 'From' is used to show distance or separation in space; while 'by' is used to show that something is near another thing or person. Have a look:

We can use 'from' and 'by' to talk about a specific time. 'From' is used to indicate the starting point of a period of time. 'By' is used to show that something occurs 'no later than' a particular time. For example:

'By' is often used to refer to the person or entity responsible for an action or outcome, while 'from' is not used in this way. Note that in this usage, 'by' is mainly used in passive voice. take a look at the examples:

We can use 'from' to talk bout the source or origin of objects, ideas, places, and people as well as the material or substance that something is made of. 'By' is not used in this way. Here are some examples:

'By' can be used to indicate the instrument or tool used to accomplish an action, or the means and method by which something is done or accomplished. For example: