His Poem, entitled the Campaign, was received with loud and general applause: It is addressed to the duke of Marlborough, and contains a short view of the military transactions in the year 1704, and a very particular description of the two great actions at Schellemberg and Blenheim.

In 1705 Mr. Addison attended the lord Hallifax to Hanover; and in the succeeding year he was made choice of for under-secretary to Sir Charles Hedges, then appointed secretary of state. In the month of December, in the same year, the earl of Sunderland, who succeeded Sir Charles in that office, continued Mr. Addison in the post of under secretary.

Operas being now much in fashion, many people of distinction and true taste, importuned him to make a trial, whether sense and sound were really so incompatible, as some admirers of the Italian pieces would represent them. He was at last prevailed upon to comply with their request, and composed his Rosamond: This piece was inscribed to the duchess of Marlborough, and met with but indifferent success on the stage. Many looked upon it as not properly an Opera; for considering what numbers of miserable productions had born that title, they were scarce satisfied that so superior a piece should appear under the same denomination About this time our author assisted Sir Richard Steel, in a play called the Tender Husband; to which he wrote a humorous Prologue. Sir Richard, whose gratitude was as warm and ready as his wit, surprized him with a dedication, which may be considered as one of the few monuments of praise, not unworthy the great person to whose honour it was raised.

In 1709 he went over to Ireland, as secretary to the marquis of Wharton, appointed lord lieutenant of that kingdom. Her majesty also, was pleased, as a mark of her peculiar favour, to augment the salary annexed to the keeper of the records in that nation, and bestow it upon him. While he was in Ireland, his friend Sir Richard Steel published the Tatler, which appeared for the first time, on the 12th of April 1709: Mr. Addison (says Tickell) discovered the author by an observation on Virgil he had communicated to him. This discovery led him to afford farther assistance, insomuch, that as the author of the Tatler well exprest it, he fared by this means, like a distrest prince, who calls in a powerful neighbour to his aid: that is, he was undone by his auxiliary.

The superiority of Mr. Addison's papers in that work is universally admitted; and being more at leisure upon the change of the ministry, he continued assisting in the Tatler till 1711, when it was dropt.

No sooner was the Tatler laid down, but Sir Richard Steel, in concert with Mr. Addison, formed the plan of the Spectator. The first paper appeared on the first of March 1711, and in the course of that great work, Mr. Addison furnished all the papers marked with any Letters of the Muse CLIO; and which were generally most admired. Tickell, who had no kindness for Sir Richard Steel, meanly supposes that he marked his paper out of precaution against Sir Richard; which was an ill-natur'd insinuation; for in the conclusion of the Spectators, he acknowledges to Mr. Addison, all he had a right to; and in his letter to Congreve, he declares that Addison's papers were marked by him, out of tenderness to his friend, and a warm zeal for his fame. Steel was a generous grateful friend; it therefore ill became Mr. Tickell in the defence of Mr. Addison's honour, which needed no such stratagem, to depreciate one of his dearest friends; and at the expence of truth, and his reputation, raise the character of his Hero. Sir Richard had opposed Mr. Addison, in the choice of Mr. Tickell as his secretary; which it seems he could never forget nor forgive.

In the Spectators, Sir Roger de Coverly was Mr. Addison's favourite character; and so tender was he of it, that he went to Sir Richard, upon his publishing a Spectator, in which he made Sir Roger pick up a woman in the temple cloisters, and would not part with his friend, until he promised to meddle with the old knight's character no more. However, Mr. Addison to make sure, and to prevent any absurdities the writers of the subsequent Spectators might fall into, resolved to remove that character out of the way; or, as he pleasantly expressed it to an intimate friend, killed Sir Roger, that no body else might murther him. When the old Spectator was finished, a new one appeared; but, though written by men of wit and genius, it did not succeed, and they were wise enough not to push the attempt too far. Posterity must have a high idea of the taste and good sense of the British nation, when they are informed, that twenty-thousand of these papers were sometimes sold in a day. [4]

The Guardian, a paper of the same tendency, entertained the town in the years 1713 and 1714, in which Mr. Addison had likewise a very large share; he also wrote two papers in the Lover.

In the year 1713 appeared his famous Cato. He entered into a design of writing a Tragedy on that subject, when he was very young; and when he was on his travels he actually wrote four acts of it: However, he retouched it on his return, without any design of bringing it on the stage; but some friends of his imagining it might be of service to the cause of liberty, he was prevailed upon to finish it for the theatre, which he accordingly did. When this play appeared, it was received with boundless admiration; and during the representation on the first night, on which its fate depended, it is said that Mr. Addison discovered uncommon timidity; he was agitated between hope and fear, and while he remained retired in the green-room, he kept a person continually going backwards and forwards, from the stage to the place where he was, to inform him how it succeeded, and till the whole was over, and the success confirmed, he never ventured to move.

When it was published, it was recommended by many Copies of Verses prefixed to it, amongst which the sincerity of Mr. Steele, and the genius of Eusden, deserve to be distinguished: But, as I would not omit any particulars relative to this renowned play, and its great author, I shall insert a letter of Mr. Pope's to Sir William Turnbull, dated the 30th of April 1713, in which are some circumstances that merit commemoration.