How old was the horse in 1990
According to the lunar calendar, 1990 is the year of the horse. And people who belong to the genus Horse are those who were born in the Year of the Horse. So, how old should a person born in the year 1990 of the Horse be now? Let's do some math together.
First of all, we need to know the conversion relationship between the lunar calendar and the Gregorian calendar. 1990 corresponds to the Gregorian calendar dates between January 27 and February 14 (the exact date varies according to the alternating cycle of each lunar and solar calendar). Therefore, anyone born within this time frame can be categorized as a Horse.
Next, we need to calculate how many solar years have passed since 1990. As of 2023, 33 solar years have passed.
However, in traditional culture, a full year is not just 365 days. Instead, a full year in the lunar calendar is usually a few days or weeks or more longer than in the solar calendar. Therefore, this difference needs to be taken into account when calculating how old someone actually is.

Taking the year 2023 as an example, let's say that a certain friend born in the year of Horse 1990 happens to have his birthday on the day of February 5 (note: this is just an example and not applicable in all cases). Then, he will turn 33 years old on February 5, 2023. However, if his birthday falls after February 14, then he will add another year to his age in the same year.
To summarize, the actual age of a person born in the year 1990 under the Horse in the year 2023 would be 33 or 34 years. It also needs to be calculated for each individual based on his/her solar birthday.
People born in the year 1990 of the Horse are now in their prime. This is usually an important time for one's career development and family building. In addition, according to the traditional cultural characterization of the Horse, these people are usually energetic, brave, passionate and adventurous.
However, please note that the above are only generalized descriptions of people born in 1990 under the Year of the Horse based on traditional concepts, and do not fully represent the reality of each individual. Everyone has their own unique personality and experiences, and will behave differently in different circumstances.
Conclusion
To summarize, those born in 1990 under the Year of the Horse should now be, or about to be, 33 or 34 years old, and are at an important stage of career development and family building. However, everyone's situation is different, so the above is only a general description and does not fully represent the actual situation of each person.