Sports RH921SX-9

You were almost there - the problem is that `plt.hist` will only make meaningful-looking bars if you give it numeric year values and the same bins for both series. In your plot it likely treated the years as strings or had very coarse default bins, so you ended up with only a couple of bars.Convert the year column to numeric, drop NaNs, pick a sensible set of bins (one per year, per decade, or whatever resolution you want), then call `plt.hist` with both arrays and the same `bins`. Use `alpha` and a legend to distinguish the sexes. Example:```pythonimport numpy as npimport matplotlib.pyplot as pltimport pandas as pd# Assume df is your full dataframe and 'sex' contains 'male'/'female'# and 'Year' contains the discovery year (may be strings)# 1) Make sure years are numericdf['Year'] = pd.to_numeric(df['Year'], errors='coerce')# 2) Split and drop missing yearsmen_years = df.loc[df['sex'] == 'male', 'Year'].dropna().astype(int)women_years = df.loc[df['sex'] == 'female', 'Year'].dropna().astype(int)# 3) Choose bins (e.g. one per year, or per 5/10 years). Here I choose 10-year bins:min_year = min(df['Year'].min(), 0)max_year = df['Year'].max()bins = np.arange(min_year, max_year + 10, 10) # decade bins# 4) Plot both on the same histogramplt.figure(figsize=(10, 5))plt.hist([men_years, women_years], bins=bins, color=['#1f77b4', '#ff7f0e'], alpha=0.6, label=['Men', 'Women'])plt.xlabel('Year of Discovery')plt.ylabel('Number of Objects Discovered')plt.title('Discoveries by Year and Sex')plt.legend()plt.grid(axis='y', alpha=0.3)plt.show()```Alternatively, with seaborn you can do:```pythonimport seaborn as snssns.histplot(data=df.dropna(subset=['Year']), x='Year', hue='sex', bins=50, multiple='layer', alpha=0.6)plt.show()```This will give you a proper overlaid histogram across the full year range instead of just two bars.