Napoleon later considered the Civil Code to be the most important of his achievements. The Code represents a comprehensive reform and codification of French civil law. Under the Ancien Régime, there were more than 400 codes of law in various parts of France, with common law prevailing in the north and Roman law in the south. The revolution overthrew many of these laws. In addition, revolutionary governments had passed more than 14,000 laws. Five attempts were made to codify the new laws of the France at the time of the National Convention and the Directory. In the second half of 1801, Napoleon‘s efforts led to the drafting of the new Civil Code in a commission of experts in which Jean-Etienne-Marie Portalis played a leading role. Napoleon personally attended 36 of the Commission‘s 87 meetings. Although the design was completed by the end of 1801, the code was not published until March 21, 1804. The Civil Code represents a typically Napoleonic blend of liberalism and conservatism, although most of the fundamental revolutionary achievements—equality before the law, religious liberty, and the abolition of feudalism—have been consolidated in its laws. Property rights, including the rights of purchasers of national assets, have become absolute. The code also strengthened patriarchal power by making the husband the head of the family. The Napoleonic Code was to be promulgated throughout the empire with modifications.
The Civil Code was followed by a Code of Civil Procedure in 1806, a Commercial Code in 1807, a Criminal Code and a Code of Criminal Procedure in 1808 and a Criminal Code in 1810. A rural law was discussed, but never promulgated. The Napoleonic Code, renamed the Civil Code, remained largely intact after the Bourbon Restoration in 1815. The Civil Code has served as a model for the legal systems of more than twenty nations around the world. The pre-Napoleonic French legal system lacked harmony. The word “system” cannot even be used to describe this web of laws because there was no systematic structure that ruled the France. Different provinces in France were governed by different laws. The southern provinces of France were governed by Roman law, while the northern provinces of France were governed by customary law.
The Civil Code retained the revolutionary law according to which a civil authority must solemnize marriages. (He did not recognize religious marriages as legal.) Many other family laws were based on traditional and even ancient Roman law. The father directed his children. A father can veto his son‘s marriage until the age of 26 and his daughter‘s marriage up to the age of 21. Fathers even had the right to lock up their children at will. The development of the Napoleonic Code was a fundamental change in the nature of the civil legal system, making laws clearer and more accessible. It also replaced the earlier conflict between the royal legislature and, particularly in the last years before the Revolution, the protests of the judges representing the views and privileges of the social classes to which they belonged. Such a conflict led revolutionaries to have a negative attitude towards the judges who made the laws. Although the Code Napoléon is not the first civil code and does not represent his entire empire, it is one of the most influential. It was adopted in many countries occupied by the French during the Napoleonic Wars.
In the regions of the Western Rhine (Rhenish Palatinate and Prussian Rhine Province), the former Duchy of Berg and the Grand Duchy of Baden, the Napoleonic Code had an influence until the introduction of the Civil Code in 1900 as the first common civil code for the entire German Empire.  Thus, the civil law systems of the countries of modern continental Europe, with the exception of Russia and the Scandinavian countries, were influenced to varying degrees by the Napoleonic Code. In the United States, whose legal system is largely based on English common law, the state of Louisiana is unique in that it has a strong influence of the Napoleonic Code and Spanish legal traditions on its civil code. 3. What are the important differences between the code and common law systems? The draft article of the Code contains important provisions on the rule of law. Laws can only be enforced if they have been duly promulgated, and only if they have been officially published (including provisions on time limits for publication taking into account the means of communication available at that time). Thus, no secret laws have been approved. It prohibited retrospective laws (i.e., laws that apply to events that occurred before they were introduced). The law also prohibited judges from denying justice because the law was inadequate, thereby encouraging them to interpret the law. On the other hand, it prohibited judges from making general judgments with legislative value (see above).  At the time of Napoleon, there was confusion in France between customary, feudal, royal, revolutionary, ecclesiastical and Roman laws.
Different legal systems controlled different parts of the country. The French writer Voltaire once complained that a man who traveled across the France had to change the laws as often as he changed horses. 2) omeedalibehzadihistoricalthinking.wordpress.com/napoleonic-code/ The term “Code Napoléon” is also used to refer to the jurisdictions of other jurisdictions influenced by the French Code Napoléon, in particular the Civil Code of Lower Canada (replaced by the Civil Code of Quebec in 1994), which is mainly derived from the Coutume de Paris, which the British continued to use in Canada after the Treaty of Paris of 1763. Most of the laws of Latin American countries are also influenced by the Napoleonic Code, for example: the Chilean Civil Code and the Puerto Rican Civil Code.  Determined to unite the France into a strong modern nation, Napoleon lobbied for a single set of written laws that applied to all. He appointed a commission to prepare a code. Napoleon wanted this code to be clear, logical and easy to understand for all citizens. The commission, composed of Napoleon and legal experts from all regions of France, met for several years. The French Civil Code, which came into force on March 21, 1804, marked the first major revision and reorganization of laws since Roman times. The Civil Code (renamed the Napoleonic Code in 1807) deals mainly with property and family issues. But these areas of law have greatly influenced people‘s lives. The French codes, which now number more than 60, are frequently modified and reinterpreted by the courts.
Therefore, for more than a century, all applicable codes have been documented in the annually revised editions of Dalloz (Paris).  These editions consist of detailed notes with references to other codes, relevant laws, judicial decisions (even if not published) and international instruments. The “small” version of the Civil Code comprises nearly 3,000 pages in this form, which are available in print and online.