The two main punctuation styles are American style and British style. American style places periods and commas inside the closing quotation marks, while British style places them outside unless they are part of the quoted material.
In American English, most punctuation marks are placed inside quotation marks. However, in British English, punctuation marks are placed outside the quotation marks unless they are part of the quoted material.
In British English, "full stop" is used to refer to the punctuation mark (.), while "period" is the term used in American English. Both words are commonly used interchangeably to denote the same punctuation mark.
The same punctuation is used inside of quotation marks as is used outside of quotation marks.
One main difference between American English and Canadian English in punctuation is the use of single vs. double quotation marks for direct speech. In American English, double quotation marks are more common, while in Canadian English, single quotation marks are often used. In terms of grammar, Canadian English tends to follow British English more closely, using British spellings and certain grammatical preferences such as the use of "whilst" instead of "while". Additionally, Canadian English may feature more influence from French language, particularly in Quebec.
Add a semicolon after 1800s. Also, the verb tense is wrong -- instead of "have been produced (present perfect), it should be have been produced.
American inventions are steam engine,first analoge watch,
communication
Major American inventions include the Voyager 1 spacecraft, the Saturn V rocket and the Advanced Research Projects Agency Network (ARPANET)
Benjamin Franklin is the American leader recognized for his scientific discoveries and inventions during the Enlightenment period.
Cat.
Transportation
the air brake is one
Burglar alarm-1852
The Knickerbocker rules for base ball!
Gatling Gun and The Rifle
Benjamin Fraklin